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Graham Corp. – ‘10-Q’ for 9/30/22 – ‘EX-101.LAB’

On:  Monday, 11/7/22, at 7:31am ET   ·   For:  9/30/22   ·   Accession #:  950170-22-22320   ·   File #:  1-08462

Previous ‘10-Q’:  ‘10-Q’ on 8/1/22 for 6/30/22   ·   Next:  ‘10-Q’ on 2/6/23 for 12/31/22   ·   Latest:  ‘10-Q’ on 2/5/24 for 12/31/23   ·   1 Reference:  By:  Graham Corp. – ‘10-K’ on 6/8/23 for 3/31/23

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

11/07/22  Graham Corp.                      10-Q        9/30/22   79:12M                                    Donnelley … Solutions/FA

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   3.14M 
 2: EX-10.1     Material Contract                                   HTML    126K 
 3: EX-10.2     Material Contract                                   HTML     82K 
 4: EX-10.3     Material Contract                                   HTML     85K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     28K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     28K 
 7: EX-32.1     Certification -- §906 - SOA'02                      HTML     25K 
13: R1          Document and Entity Information                     HTML     75K 
14: R2          Condensed Consolidated Statements of Operations     HTML    104K 
                (Unaudited)                                                      
15: R3          Condensed Consolidated Statements of Comprehensive  HTML     49K 
                Income (Loss) (Unaudited)                                        
16: R4          Condensed Consolidated Statements of Comprehensive  HTML     26K 
                Income (Loss) (Unaudited) (Parenthetical)                        
17: R5          Condensed Consolidated Balance Sheets (Unaudited)   HTML    164K 
18: R6          Condensed Consolidated Balance Sheets (Unaudited)   HTML     41K 
                (Parenthetical)                                                  
19: R7          Condensed Consolidated Statements of Cash Flows     HTML    125K 
                (Unaudited)                                                      
20: R8          Condensed Consolidated Statements of Changes in     HTML     76K 
                Stockholders' Equity                                             
21: R9          Basis of Presentation                               HTML     27K 
22: R10         Acquisition                                         HTML    194K 
23: R11         Revenue Recognition                                 HTML    213K 
24: R12         Inventories                                         HTML     49K 
25: R13         Equity-Based Compensation                           HTML     72K 
26: R14         Income (Loss) Per Share                             HTML    151K 
27: R15         Product Warranty Liability                          HTML     80K 
28: R16         Cash Flow Statement                                 HTML     35K 
29: R17         Employee Benefit Plans                              HTML    125K 
30: R18         Commitments and Contingencies                       HTML     28K 
31: R19         Income Taxes                                        HTML     34K 
32: R20         Changes in Accumulated Other Comprehensive Loss     HTML    178K 
33: R21         Leases                                              HTML    161K 
34: R22         Debt                                                HTML    106K 
35: R23         Other Operating Income, Net                         HTML     27K 
36: R24         Acquisition (Tables)                                HTML    183K 
37: R25         Revenue Recognition (Tables)                        HTML    180K 
38: R26         Inventories (Tables)                                HTML     49K 
39: R27         Equity - Based Compensation (Tables)                HTML     40K 
40: R28         Income (Loss) Per Share (Tables)                    HTML    148K 
41: R29         Product Warranty Liability (Tables)                 HTML     77K 
42: R30         Employee Benefit Plans (Tables)                     HTML    115K 
43: R31         Changes in Accumulated Other Comprehensive Loss     HTML    177K 
                (Tables)                                                         
44: R32         Leases (Tables)                                     HTML    158K 
45: R33         Debt (Tables)                                       HTML     73K 
46: R34         Acquisition - Additional Information (Detail)       HTML     67K 
47: R35         Acquisition - Schedule of Final Purchase Price      HTML     75K 
                Allocation, After Adjustments of the Assets                      
                Acquired and Liabilities Assumed (Detail)                        
48: R36         Acquisition - Schedule of Purchase Price Allocated  HTML     54K 
                to Intangible Assets (Detail)                                    
49: R37         Acquisition - Schedule of Estimated Annual          HTML     39K 
                Amortization Expense (Detail)                                    
50: R38         Acquisition - Schedule of Unaudited Pro Forma       HTML     33K 
                Information (Detail)                                             
51: R39         Revenue Recognition - Revenue Disaggregated by      HTML     53K 
                Product Line and Geographic Area (Detail)                        
52: R40         Revenue Recognition - Additional Information        HTML     55K 
                (Detail)                                                         
53: R41         Revenue Recognition - Schedule of Net Contract      HTML     35K 
                Assets (Liabilities) (Detail)                                    
54: R42         Revenue Recognition - Additional Information        HTML     37K 
                (Detail1)                                                        
55: R43         Inventories - Major Classifications of Inventories  HTML     31K 
                (Detail)                                                         
56: R44         Equity - Based Compensation - Restricted stock      HTML     29K 
                units granted (Detail)                                           
57: R45         Equity-Based Compensation - Additional Information  HTML     97K 
                (Detail)                                                         
58: R46         Income (Loss) Per Share - Reconciliation of         HTML     63K 
                Numerators and Denominators of Basic and Diluted                 
                Income (Loss) Per Share (Detail)                                 
59: R47         Product Warranty Liability - Reconciliation of the  HTML     32K 
                Changes in Product Warranty Liability (Detail)                   
60: R48         Product Warranty Liability - Additional             HTML     24K 
                Information (Detail)                                             
61: R49         Cash Flow Statement - Additional Information        HTML     44K 
                (Detail)                                                         
62: R50         Employee Benefit Plans - Components of              HTML     44K 
                Postretirement Benefit Cost and Pension Cost                     
                (Detail)                                                         
63: R51         Employee Benefit Plans - Additional Information     HTML     39K 
                (Detail)                                                         
64: R52         Income Taxes - Additional Information (Detail)      HTML     42K 
65: R53         Changes in Accumulated Other Comprehensive Loss -   HTML     48K 
                Changes in Accumulated Other Comprehensive Loss by               
                Component (Detail)                                               
66: R54         Changes in Accumulated Other Comprehensive Loss -   HTML     56K 
                Reclassifications Out of Accumulated Other                       
                Comprehensive Loss by Component (Detail)                         
67: R55         Leases - Additional Information (Detail)            HTML     29K 
68: R56         Leases - Summary of Weighted Average Remaining      HTML     34K 
                Lease Term and Discount Rate for Finance and                     
                Operating Leases (Detail)                                        
69: R57         Leases - Summary of Components of Lease Expense     HTML     35K 
                (Detail)                                                         
70: R58         Leases - Future Minimum Payments Required under     HTML     62K 
                Non-cancelable Leases (Detail)                                   
71: R59         Debt - Additional Information (Detail)              HTML    112K 
72: R60         Debt - Schedule of Long Term Debt (Detail)          HTML     35K 
73: R61         Debt - Schedule of Future Minimum Payments          HTML     43K 
                (Detail)                                                         
74: R62         Other Operating Income, Net - Additional            HTML     32K 
                Information (Detail)                                             
77: XML         IDEA XML File -- Filing Summary                      XML    141K 
75: XML         XBRL Instance -- ghm-20220930_htm                    XML   3.00M 
76: EXCEL       IDEA Workbook of Financial Reports                  XLSX    125K 
12: EX-101.CAL  XBRL Calculations -- ghm-20220930_cal                XML    234K 
 8: EX-101.DEF  XBRL Definitions -- ghm-20220930_def                 XML    622K 
11: EX-101.LAB  XBRL Labels -- ghm-20220930_lab                      XML   1.38M 
10: EX-101.PRE  XBRL Presentations -- ghm-20220930_pre               XML    961K 
 9: EX-101.SCH  XBRL Schema -- ghm-20220930                          XSD    179K 
78: JSON        XBRL Instance as JSON Data -- MetaLinks              448±   696K 
79: ZIP         XBRL Zipped Folder -- 0000950170-22-022320-xbrl      Zip    406K

‘EX-101.LAB’   —   XBRL Labels — ghm-20220930_lab

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrent" xlink:label="us-gaap_AccountsPayableCurrent"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis" xlink:label="us-gaap_PlanNameAxis"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
<link:loc xlink:type="locator" xlink:href="ghm-20220930.xsd#ghm_FiveYearTermLoanWithBankOfAmericaMember" xlink:label="ghm_FiveYearTermLoanWithBankOfAmericaMember"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualAxis" xlink:label="srt_TitleOfIndividualAxis"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_DirectorMember" xlink:label="srt_DirectorMember"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTerm" xlink:label="us-gaap_DebtInstrumentTerm"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockParOrStatedValuePerShare" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="us-gaap_GainLossOnDispositionOfAssets"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:label="us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="us-gaap_DebtInstrumentLineItems"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
<link:loc xlink:type="locator" xlink:href="ghm-20220930.xsd#ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialLossesMember" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialLossesMember"/>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Address, City or Town </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressCityOrTown_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Address, City or Town </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> New Accounting Pronouncements Or Change In Accounting Principle [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Standards Update and Change in Accounting Principle [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Per share data </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid, Year Three </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2026 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Numerator: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Numerator [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Numerator. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Federal Tax Jurisdictions [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DomesticCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Domestic Tax Authority [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Value, New Issues </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Percentage of revenue from contracts recognized upon shipment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The percentage of total revenue from contracts from customers from the satisfaction of performance obligations at a point in time. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Financing activities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Financing Activities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Acquisition of contract liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Liability, Increase (Decrease) for Contract Acquired in Business Combination </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Amendment Flag </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_AmendmentFlag_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Amendment Flag </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Change in fair value of contingent liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contingent Consideration Classified as Equity, Fair Value Disclosure </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Defined benefit pension and other postretirement plans net of income tax expense of $37 and $63 for the three months ended September 30, 2022 and 2021, respectively, and $74 and $124 for the six months ended September 30, 2022 and 2021, respectively </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, Year Four </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2027 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Capital expenditures </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Capital Expenditures Incurred but Not yet Paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number of shares authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Short-term debt obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Short-Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermBorrowings_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Short-Term Debt, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets, Accumulated Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles subject to amortization, Accumulated Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contract With Customer Assets And Liabilities [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Assets And Liabilities [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Contract with customer assets and liabilities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAssetLiabilityNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change In Contract With Customer Asset Liability Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAssetLiabilityNet_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The change in the net balance of the contract with customer asset and contract with customer liability. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAssetLiabilityNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net contract assets (liabilities) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination share price </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionSharePrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Share Price </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Goodwill, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Goodwill, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Goodwill, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Goodwill </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Goodwill </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Goodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Goodwill </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Income Tax Assets, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred income tax asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Operating lease assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Right-of-Use Asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue remaining performance obligation percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue, Remaining Performance Obligation, Percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Quarterly Report </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentQuarterlyReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Quarterly Report </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt Instrument [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Long-Term Debt Instruments [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Denominator: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Denominator Diluted Income [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Denominator diluted income. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Purchase of treasury stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments for Repurchase of Common Stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedTranslationAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Foreign Currency Items [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedTranslationAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Foreign Currency Adjustment Attributable to Parent [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Less – amount representing interest </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, Undiscounted Excess Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Statement [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Liability, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid, Year One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2024 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest on lease liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseInterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Interest Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditSecuredByCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Letter of Credit Secured by Cash [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditSecuredByCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Letter Of Credit Secured By Cash [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditSecuredByCashMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Letter of credit secured by cash. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting standards update, immaterial effect </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateImmaterialEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Postretirement Benefit Plans [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Postretirement Benefits Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Monthly lease payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PensionAdjustmentsNetOfIncomeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Pension adjustments, net of income tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PensionAdjustmentsNetOfIncomeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Pension Adjustments Net Of Income Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PensionAdjustmentsNetOfIncomeTax_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Pension adjustments, net of income tax. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncurrentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Long-Term Liabilities [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherNoncurrentLiabilitiesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Noncurrent Liabilities [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accumulated Other Comprehensive Income Loss [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Other Comprehensive Income (Loss) [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Dividends paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDividendsCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments of Ordinary Dividends, Common Stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Beginning balance, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Ending Balance, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Shares, Issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Tax Authority </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Authority [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income tax benefit to equity based compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement, Expense, Tax Benefit </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201912Member_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> ASU 2019-12 [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingStandardsUpdate201912Member_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Standards Update 2019-12 [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Product and Service </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductOrServiceAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product and Service [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetReclassifiedToReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contract with customer liability offset by invoicing to customers. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetReclassifiedToReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Asset, Reclassified to Receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Business Combination, Contingent Consideration, Liability, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, contingent earn-out </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Contingent Consideration, Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Officer [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_OfficerMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Officer [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease Liability Payments Due Year Five And After Year Five </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Finance lease liability payments due year five and after year five. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2028 and thereafter </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Amounts reclassified from accumulated other comprehensive loss </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Employee-related Liabilities, Current, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeRelatedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Employee-related Liabilities, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Employee Stock Option [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement, Option [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average remaining lease term in years </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Weighted Average Remaining Lease Term </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total liabilities and stockholders’ equity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities and Equity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxPeriodAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Tax Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxPeriodAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Tax Period [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Plan Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Plan Name [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prepaid pension asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Assets for Plan Benefits, Defined Benefit Plan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Line of Credit Facility, Lender </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit Facility, Lender [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TimeVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Time Vested Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TimeVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Time Vested Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TimeVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Time vested restricted stock. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted average common shares outstanding: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Weighted Average Number of Shares Outstanding, Diluted [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Inventory, Raw Materials, Gross, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Raw materials and supplies </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryRawMaterials_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory, Raw Materials, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting standards update adopted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdopted_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change in Accounting Principle, Accounting Standards Update, Adopted [true false] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Incorporation, State or Country Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityIncorporationStateCountryCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Incorporation, State or Country Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Basis of Presentation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average remaining lease term in years </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Weighted Average Remaining Lease Term </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other long term liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current portion of finance lease obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total current liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Contract with Customer, Asset, after Allowance for Credit Loss, Current, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Unbilled revenue (contract assets) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Unbilled revenue </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Asset, after Allowance for Credit Loss, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid, Year Three </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2026 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAcquiredFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net of cash acquired </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAcquiredFromAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cash Acquired from Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business Acquisition, Acquiree </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionAcquireeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Acquiree [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Contract liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Liability Consideration Receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The amount of obligation to transfer good or service to customer for which consideration is receivable. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Interest Expense, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Interest Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradeNamesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Tradename [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TradeNamesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Trade Names [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Operating And Finance Leases [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeasesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lessee operating and finance leases. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Short-term lease cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Short-Term Lease, Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer deposits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Contract with Customer, Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Preferred stock, shares authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Preferred Stock, Shares Authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Treasury Stock, Shares, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockShares_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Treasury Stock, Shares, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockShares_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Treasury Stock, Shares, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockShares_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Treasury stock, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockShares_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Treasury Stock, Shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChemicalPetrochemicalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Chemical/Petrochemical [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChemicalPetrochemicalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Chemical/Petrochemical [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChemicalPetrochemicalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Chemical/Petrochemical. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average discount rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Weighted Average Discount Rate, Percent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Variable Rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Variable Rate [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Small Business </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntitySmallBusiness_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Small Business </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquipmentOnLease_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments to Acquire Equipment on Lease </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireEquipmentOnLease_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equipment on lease, monthly payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SummaryOfBasicAndDilutedEarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Summary Of Basic And Diluted Earnings Per Share [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SummaryOfBasicAndDilutedEarningsPerShareAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Summary Of Basic And Diluted Earnings Per Share [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Collaborative Arrangement and Arrangement Other than Collaborative </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfArrangementAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Collaborative Arrangement and Arrangement Other than Collaborative [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassifications Out of Accumulated Other Comprehensive Loss [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification out of Accumulated Other Comprehensive Income [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Restructuring Reserve </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Restructuring Reserve, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Restructuring Reserve, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestructuringReserve_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Restructuring Reserve, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finance Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FinanceLeaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Finance lease. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedAndIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedAndIndefiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Purchase Price Allocated to Intangible Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Operating Income Net [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Operating Income Net [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Other operating income, net. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total current assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Assets, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Net Contract Assets (Liabilities) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Indefinite-lived Intangible Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Indefinite-Lived Intangible Assets [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remainder of 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Indefinite-Lived Intangible Assets (Excluding Goodwill), Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Indefinite-Lived Intangible Assets (Excluding Goodwill), Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Indefinite-Lived Intangible Assets (Excluding Goodwill), Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Indefinite-Lived Intangible Assets (Excluding Goodwill) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles not subject to amortization, Net Carrying Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Weighted Average Number of Shares Outstanding, Basic, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Weighted average common shares outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Basic </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Weighted Average Number of Shares Outstanding, Basic </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Forfeiture of shares, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Forfeiture of shares, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardForfeited_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Shares, Restricted Stock Award, Forfeited </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Finance Lease, Liability, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Present value of net minimum lease payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> City Area Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CityAreaCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> City Area Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Debt [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Long Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Operating Lease Asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Business combination, recognized identifiable assets acquired and liabilities assumed, operating lease asset. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Components of Postretirement Benefit Cost and Pension Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Net Benefit Costs [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LatestTaxYearMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Latest Tax Year [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LatestTaxYearMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Latest Tax Year [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Unused commitment fee for borrowing </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit Facility, Unused Capacity, Commitment Fee Percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Changes in Accumulated Other Comprehensive Loss </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNoteTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Comprehensive Income (Loss) Note [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Fee for outstanding letters of credit </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Letter Of Credit Commitment Fee Percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LetterOfCreditCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The fee, expressed as a percentage of the standby letter of credit amount, incurred for the issuance of a standby letter of credit. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Income taxes receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Income Taxes Receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Liabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Period End Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentPeriodEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Period End Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Accrued Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Accrued Liabilities, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrentAndNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accrued Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> New Accounting Pronouncements Or Change In Accounting Principle [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> New Accounting Pronouncements or Change in Accounting Principle [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net pension cost (benefit) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Net Periodic Benefit Cost (Credit) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Unbilled revenue </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Contract with Customer, Asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Asset, Expected Amortization, Year One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2024 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Statistical Measurement </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statistical Measurement [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Assets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StateAndLocalJurisdictionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> State Tax Jurisdictions [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StateAndLocalJurisdictionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> State and Local Jurisdiction [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RepaymentsOnLeaseFinancingObligations_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Repayments on lease financing obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RepaymentsOnLeaseFinancingObligations_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Repayments On Lease Financing Obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RepaymentsOnLeaseFinancingObligations_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Amount of cash outflow for principal payment on a lease financing obligation that did not meet the criteria for a sales leaseback. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Taxes [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Taxes [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Income taxes. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Earnings Per Share, Diluted, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share, Diluted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Diluted income (loss) per share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetirementPlanTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Retirement Plan Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetirementPlanTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retirement Plan Type [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SellingGeneralAndAdministrativeAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Selling, general and administrative – amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SellingGeneralAndAdministrativeAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Selling General And Administrative Amortization Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SellingGeneralAndAdministrativeAmortizationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The amount of expense recognized in the current period that reflects the allocation of the costs of intangible assets over the expected benefit of such assets. This element applies only to intangible assets that are not used in the production of goods. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Barber-Nichols, Inc. [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Barber Nichols Inc [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsIncMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Barber-Nichols, Inc. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income taxes receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Taxes Receivable, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Leases [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Leases [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Leases. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Address, Postal Zip Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressPostalZipCode_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Address, Postal Zip Code </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Basic: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasicAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share, Basic [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contract With Customer Assets And Liabilities [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Assets And Liabilities [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerAssetsAndLiabilitiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Contract with customer assets and liabilities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Product Warranty Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product Warranty Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Fiscal Period Focus </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalPeriodFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Fiscal Period Focus </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Leases [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Leases [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LeasesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Leases. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Taxes [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Taxes [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncomeTaxesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Income taxes. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Cost of Goods and Services Sold, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cost of products sold </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CostOfGoodsAndServicesSold_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cost of Goods and Services Sold </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Accounts receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Accounts Receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionPlansDefinedBenefitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Pension Plans, Defined Benefit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionPlansDefinedBenefitMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Pension Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revolving Credit Facility [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revolving Credit Facility [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Preferred Stock, Value, Issued, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Preferred Stock, Value, Issued, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Preferred Stock, Value, Issued, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Preferred stock, $1.00 par value, 500 shares authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Preferred Stock, Value, Issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> APIC, Share-based Payment Arrangement, Increase for Cost Recognition, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Recognition of equity-based compensation expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> APIC, Share-Based Payment Arrangement, Increase for Cost Recognition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Incremental Common Shares Attributable to Share-based Payment Arrangements, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock units outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Interest income </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentIncomeInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Investment Income, Interest </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Denominator: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Denominator [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DenominatorAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Denominator. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Operating Lease, Liability, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Present value of net minimum lease payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash provided by financing activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Financing Activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUnbilledRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Unbilled revenue </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUnbilledRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Unbilled Revenue </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedUnbilledRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Business combination, recognized identifiable assets acquired and liabilities assumed, unbilled revenue. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Short-term Debt, Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Short-Term Debt, Type [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Increase (decrease) in operating liabilities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Operating Liabilities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement of Financial Position [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Percentage of revenue from contracts recognized over time </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The percentage of total revenue from contracts from customers from the satisfaction of performance obligations satisfied over time. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Transaction Agreement [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Transaction Agreement [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TransactionAgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Transaction agreement. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity File Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFileNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity File Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Scenario </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Scenario [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total lease payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfCashFlowsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement of Cash Flows [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Line of credit </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit Facility, Current Borrowing Capacity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Assets acquired: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Employee Benefit Plans </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retirement Benefits [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Geographical </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SegmentGeographicalDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Geographical [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other operating income, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Other operating income, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Operating Income (Expense), Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Statistical Measurement </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_RangeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statistical Measurement [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement of Stockholders' Equity [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Agreement [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AgreementMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Agreement. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Operating Lease Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Business combination, recognized identifiable assets acquired and liabilities assumed, operating lease liabilities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Components of Lease Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lease, Cost [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Subsequent Events [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassification out of Accumulated Other Comprehensive Income </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification out of Accumulated Other Comprehensive Income [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lease Agreements [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseAgreementsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lease Agreements Member </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GranteeStatusAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Grantee Status [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Issuance of treasury stock, value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Noncash Or Part Noncash Acquisition Equity Instrument Consideration Value Of Treasury Shares Issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Noncash or part noncash acquisition equity instrument consideration value of treasury shares issued. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Deferred Income Tax Expense (Benefit), Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred income taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Income Tax Expense (Benefit) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Deferred Income Tax Liabilities, Net, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Deferred income tax liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DeferredIncomeTaxLiabilitiesNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Deferred Income Tax Liabilities, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue Recognition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue from Contract with Customer [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrualPayments_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Product warranty claims paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StandardProductWarrantyAccrualPayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Standard Product Warranty Accrual, Decrease for Payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherCommercialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Commercial [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherCommercialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Commercial [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherCommercialMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Other Commercial. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Redemption of investments at maturity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds from Maturities, Prepayments and Calls of Held-to-Maturity Securities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum limit of credit facility </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit Facility, Maximum Borrowing Capacity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Preferred stock, par value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Preferred Stock, Par or Stated Value Per Share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Customer deposits (contract liabilities) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer deposits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Liability, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Asset, Expected Amortization, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remainder of 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Capitalized Contract Cost, Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Credit Facility </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Credit Facility [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Subsequent Events </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SubsequentEventsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Subsequent Events [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Weighted average common and potential common shares outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Diluted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Weighted Average Number of Shares Outstanding, Diluted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LineOfCreditFee_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Annual facility fee </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LineOfCreditFee_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line Of Credit Fee </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LineOfCreditFee_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Amount of the flat fee for the line of credit facility. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Borrowings of short-term debt obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds from Short-Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromShortTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Proceeds from Short-Term Debt, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Indefinite lived intangible assets excluding goodwill gross. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Indefinite Lived Intangible Assets Excluding Goodwill Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsExcludingGoodwillGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles not subject to amortization, Gross Carrying Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finite-Lived Intangible Assets, Major Class Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Credit Facility </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Credit Facility [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net loss </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Pro Forma Net Income (Loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Operating Income Net [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Operating Income Net [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OtherOperatingIncomeNetLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Other operating income, net. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current Fiscal Year End Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CurrentFiscalYearEndDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Current Fiscal Year End Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Depreciation, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Depreciation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Depreciation_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Depreciation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Cash and cash equivalents at beginning of period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Cash and cash equivalents at end of period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HeldToMaturitySecuritiesOriginalMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Treasury with original maturities period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HeldToMaturitySecuritiesOriginalMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Held To Maturity Securities Original Maturity Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HeldToMaturitySecuritiesOriginalMaturityPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Original maturity period for held to maturity securities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Other Assets, Noncurrent, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Assets, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Address, Address Line One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressAddressLine1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Address, Address Line One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Repayments of Long-term Debt, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Repayments of Long-Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RepaymentsOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Principal repayments on debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finite-Lived Intangible Assets by Major Class </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets by Major Class [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Investments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting and Reporting Changes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Standards Update and Change in Accounting Principle [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Long-term portion of accrued compensation, accrued pension liability and accrued postretirement benefits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred for deferred compensation arrangements payable beyond one year and noncurrent liabilities associated with defined benefit pension plans and other postretirement defined benefit plans. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Income Tax Expense (Benefit), Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Benefit for income taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Expense (Benefit) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Provision (benefit) for income taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenTaxYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Open tax year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OpenTaxYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Open Tax Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finance Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFixedChargeCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Minimum fixed charge coverage ratio </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFixedChargeCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum Fixed Charge Coverage Ratio </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFixedChargeCoverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Minimum fixed charge coverage ratio. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vesting </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Vesting [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Balance Sheet Location </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Balance Sheet Location [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Payments to Acquire Property, Plant, and Equipment, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Purchase of property, plant and equipment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments to Acquire Property, Plant, and Equipment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue remaining unsatisfied performance obligations amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue, Remaining Performance Obligation, Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Disclosure [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BackEndFeeCharged_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Fee charged by bank for the cost of the amended bank agreement. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BackEndFeeCharged_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Back End Fee Charged </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BackEndFeeCharged_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Back end fee </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeAndExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Operating Income, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeAndExpenseTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Operating Income and Expense [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting standards update, adoption date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ChangeInAccountingPrincipleAccountingStandardsUpdateAdoptionDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change in Accounting Principle, Accounting Standards Update, Adoption Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Percentage of upfront fees </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityCommitmentFeePercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit Facility, Commitment Fee Percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockAuthorizedForPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock may be purchased </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockAuthorizedForPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Common Stock Authorized For Purchase </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardCommonStockAuthorizedForPurchase_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The number of shares originally approved that may be purchased by employees under the company employee stock purchase plan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Unbilled revenue (contract assets) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change In Contract With Customer Asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The change in the balance of the contract with customer asset. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of shares, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Shares, New Issues </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AsiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Asia [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_AsiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Asia [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarliestTaxYearMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Earliest Tax Year [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarliestTaxYearMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earliest Tax Year [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Held To Maturity Securities [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Securities, Held-to-Maturity [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundsDebtToLiquidityPriorToOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Minimum Funds Debt To Liquidity Prior To Occurrence Of Compliance Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundsDebtToLiquidityPriorToOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum Funds Debt To Liquidity Prior To Occurrence Of Compliance Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundsDebtToLiquidityPriorToOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Minimum funded debt to liquidity prior to occurrence of compliance date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Backlog [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Backlog [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BacklogMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Backlog. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite Lived Intangible Assets Amortization Expense Year Five And Thereafter </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Finite lived intangible assets amortization expense year five and thereafter. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiniteLivedIntangibleAssetsAmortizationExpenseYearFiveAndThereafter_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2028 and thereafter </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Equity [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid, Year Four </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2027 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Income (Loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Operating income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeaseAnnualIncreaseInLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Annual escalation in lease payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeaseAnnualIncreaseInLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease Annual Increase In Lease Payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeaseAnnualIncreaseInLeasePayments_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Annual percentage increase on the operating lease payments. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Additional Paid in Capital, Common Stock, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Additional Paid in Capital, Common Stock, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Capital in excess of par value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Paid in Capital, Common Stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Business combination, net cash consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments to Acquire Businesses, Net of Cash Acquired </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Payments to Acquire Businesses, Net of Cash Acquired, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Acquisition of Barber-Nichols, LLC </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Scenario </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementScenarioAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Scenario [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Unamortized Debt Issuance Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Less: unamortized debt issuance costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Less: unamortized debt issuance costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Prepaid pension asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The (increase) decrease during the reporting period in the amount of the asset recognized for an overfunded defined benefit pension plan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Filer Category </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityFilerCategory_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Filer Category </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeveranceCosts1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Severance payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SeveranceCosts1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Severance Costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Long-Term Debt, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Long-term debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total other comprehensive (loss) income </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Property, plant & equipment, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Current Reporting Status </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCurrentReportingStatus_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Current Reporting Status </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prepaid expenses and other current assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseRemainingTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remaining term of contract </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseRemainingTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Operating And Finance Lease Remaining Term Of Contract </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseRemainingTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lessee operating and finance lease remaining term of contract. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Line of Credit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Line of Credit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ScheduleOfWeightedAverageRemainingLeaseTermAndDiscountRateForFinanceAndOperatingLeasesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Weighted Average Remaining Lease Term and Discount Rate for Finance and Operating Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ScheduleOfWeightedAverageRemainingLeaseTermAndDiscountRateForFinanceAndOperatingLeasesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule Of Weighted Average Remaining Lease Term And Discount Rate For Finance And Operating Leases Table [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ScheduleOfWeightedAverageRemainingLeaseTermAndDiscountRateForFinanceAndOperatingLeasesTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Schedule of weighted average remaining lease term and discount rate for finance and operating leases. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prime Rate [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrimeRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Prime Rate [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combinations [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Finite-Lived Intangible Assets, Net, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Finite-Lived Intangible Assets, Net, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total intangible amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Intangibles subject to amortization, Net Carrying Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finite-Lived Intangible Assets, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Diluted: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareDilutedAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share, Diluted [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total stockholders’ equity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Beginning balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquity_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stockholders' Equity Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accumulated Other Comprehensive Loss [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> AOCI Attributable to Parent [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Effect of exchange rate changes on cash </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, Year Two </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2025 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Tax Identification Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityTaxIdentificationNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Tax Identification Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Statement Location </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement Location [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, $0.10 par value, 25,500 shares authorized, 10,758 and 10,801 shares issued and 10,611 and 10,636 shares outstanding at September 30 and March 31, 2022, respectively </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Common Stock, Value, Issued, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Common Stock, Value, Issued, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Common Stock, Value, Issued, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Value, Issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DirectorsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Directors [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DirectorsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Directors [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DirectorsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Directors </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Retained Earnings (Accumulated Deficit), Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Retained Earnings (Accumulated Deficit), Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Retained Earnings (Accumulated Deficit), Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Retained earnings </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retained Earnings (Accumulated Deficit) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Components </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Components [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAcquisitionRelatedCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, Acquisition related costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationAcquisitionRelatedCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Acquisition Related Costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting Standards Update </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TypeOfAdoptionMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Standards Update [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Leases [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Accrued Compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAccruedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Business combination, recognized identifiable assets acquired and liabilities assumed, accrued compensation. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer Relationships [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CustomerRelationshipsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Customer Relationships [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Disaggregation Of Revenue [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Disaggregation of Revenue [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Emerging Growth Company </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityEmergingGrowthCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Emerging Growth Company </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Business Acquisitions By Acquisition [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Business Acquisitions, by Acquisition [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Income for product warranties </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product Warranty Income </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncome_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The income included in earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanInterestCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanInterestCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Interest Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseAndFinanceLeaseOptionToRenewOrTerminate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lessee, option to renew or terminate leases, description </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseAndFinanceLeaseOptionToRenewOrTerminate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Operating Lease And Finance Lease Option To Renew Or Terminate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseAndFinanceLeaseOptionToRenewOrTerminate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lessee operating lease and finance lease option to renew or terminate. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetirementPlanTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Retirement Plan Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetirementPlanTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retirement Plan Type [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Canada [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_CA_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> CANADA </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Term loan principal payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Periodic Payment, Principal </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AmortizationOfActuarialLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of actuarial losses </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AmortizationOfActuarialLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Amortization Of Actuarial Losses </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AmortizationOfActuarialLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The amount of gains and losses recognized in net periodic benefit cost related to defined benefit plans. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumDiscountFromMarketPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum discount on purchase price of common stock percentage on fair market value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumDiscountFromMarketPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Maximum Discount From Market Price </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumDiscountFromMarketPrice_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Maximum discount rate from fair value of market price on the last, first or lower of the last or first day of the offering period that participants pay for shares. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Letter of Credit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LetterOfCreditMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Letter of Credit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilitiesPaymentsDueAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanServiceCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Service cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanServiceCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Service Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaTermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Bank of America term loan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaTermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Bank Of America Term Loan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaTermLoanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Bank of America Term Loan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CompensationAndRetirementDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retirement Benefits [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Transition Report </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentTransitionReport_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Transition Report </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SelfInsuredMedicalPlanLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Self-Insured medical plan liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SelfInsuredMedicalPlanLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Self Insured Medical Plan Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SelfInsuredMedicalPlanLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The liability recognized in the balance sheet that is associated with the self insured medical plan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, Year Three </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2026 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Changes in Accumulated Other Comprehensive Loss by Component </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Commitments and Contingencies </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Commitments and Contingencies Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Bank of America. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Bank of America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Bank Of America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Accumulated Other Comprehensive Income (Loss), Net of Tax, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accumulated other comprehensive loss </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Other Comprehensive Income (Loss), Net of Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToLiquidityFromAndAfterOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Minimum funded debt to liquidity from and after occurrence of compliance date. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToLiquidityFromAndAfterOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum Funded Debt To Liquidity From And After Occurrence Of Compliance Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToLiquidityFromAndAfterOccurrenceOfComplianceDate_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Minimum funded debt to liquidity from and after occurrence of compliance date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxPeriodDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Tax Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TaxPeriodDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Tax Period [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Accounts Receivable, after Allowance for Credit Loss, Current, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounts Receivable, after Allowance for Credit Loss, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Trade accounts receivable, net of allowances ($98 and $87 at June 30 and March 31, 2022, respectively) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Entity Common Stock, Shares Outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Common Stock, Shares Outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Amortization of Debt Issuance Costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfFinancingCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of debt issuance costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash Flow Statement </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashFlowSupplementalDisclosuresTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cash Flow, Supplemental Disclosures [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Income (Loss) Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetIncomeLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsWeightedAverageAmortizationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles not subject to amortization, Weighted Average Amortization Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsWeightedAverageAmortizationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Indefinite Lived Intangible Assets Weighted Average Amortization Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IndefiniteLivedIntangibleAssetsWeightedAverageAmortizationPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Indefinite lived intangible assets weighted average amortization period. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Liability, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Leases [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OperatingLeasesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Operating leases. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued expenses and other current liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Capital in Excess of Par Value [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Additional Paid-in Capital [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Collaborative Arrangement and Arrangement Other than Collaborative </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ArrangementsAndNonarrangementTransactionsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Collaborative Arrangement and Arrangement Other than Collaborative [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Term loan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Term Loan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TermLoan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Bank of America term loan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash and cash equivalents </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Maturities of Long-Term Debt [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfMaturitiesOfLongTermDebtTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Future Minimum Payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Registrant Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityRegistrantName_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Registrant Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredParValueMethod_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Purchase of treasury stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValueAcquiredParValueMethod_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Treasury Stock, Value, Acquired, Par Value Method </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Foreign currency translation adjustment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Allowances on trade accounts receivable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounts Receivable, Allowance for Credit Loss, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Cash and Cash Equivalents, at Carrying Value, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Cash and Cash Equivalents, at Carrying Value, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Cash and Cash Equivalents, at Carrying Value, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Cash and cash equivalents </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashAndCashEquivalentsAtCarryingValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cash and Cash Equivalents, at Carrying Value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income (Loss) Per Share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Share-based Payment Arrangement, Noncash Expense, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity-based compensation expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensation_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement, Noncash Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement of Comprehensive Income [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Property, Plant and Equipment, Net, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Property, Plant and Equipment, Net, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Property, Plant and Equipment, Net, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Property, plant and equipment, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Property, Plant and Equipment, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseRightOfUseAssetAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of right-of-use assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseRightOfUseAssetAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Right-of-Use Asset, Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Award Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Award Type [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Statement [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StatementLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Statement [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfMinimumMarginedAssetsOnOutstandingFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Percentage of minimum margined assets on outstanding facility </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfMinimumMarginedAssetsOnOutstandingFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Percentage Of Minimum Margined Assets On Outstanding Facility </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PercentageOfMinimumMarginedAssetsOnOutstandingFacility_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Percentage of minimum margined assets on outstanding facility. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Long-Term Debt, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current portion of long-term debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Title of 12(b) Security </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_Security12bTitle_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Title of 12(b) Security </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Finite-Lived Intangible Assets, Gross, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Assets, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles subject to amortization, Gross Carrying Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Increase (Decrease) in Accounts Payable, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInAccountsPayable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Accounts Payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating activities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Space [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Space [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_SpaceMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Space. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity Component </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EquityComponentDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Equity Component [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remainder of 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer deposits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Customer Deposits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCustomerDeposits_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Business combination, recognized identifiable assets acquired and liabilities assumed, customer deposits. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Revenue from Contract with Customer, Excluding Assessed Tax, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net sales </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue from Contract with Customer, Excluding Assessed Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income (loss) before benefit for income taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Income (loss) before provision (benefit) for income taxes </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Less – amount representing interest </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityUndiscountedExcessAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, Undiscounted Excess Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Address, State or Province </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityAddressStateOrProvince_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Address, State or Province </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid, Year Four </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2027 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Geographical </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_StatementGeographicalAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Geographical [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net decrease in cash and cash equivalents </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Capitalized Contract Cost, Net, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Capitalized costs, net of amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CapitalizedContractCostNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Capitalized Contract Cost, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HSBCBankUSAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> HSBC Bank USA [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HSBCBankUSAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> H S B C Bank U S A [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_HSBCBankUSAMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> HSBC Bank USA. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentType_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Interest paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InterestPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Interest Paid, Excluding Capitalized Interest, Operating Activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Pro Forma Information [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaInformationTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Unaudited Pro Forma Information </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Defined benefit pension and other postretirement plans, tax expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Issuance of treasury stock, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of treasury stock, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodSharesTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Shares, Treasury Stock Reissued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> U.S. [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="country_US_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> UNITED STATES </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Amortization of actuarial loss </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Amortization of Gain (Loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Shell Company </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityShellCompany_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Shell Company </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Increase (Decrease) in Inventories, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInInventories_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity based compensation expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement, Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioUponAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum leverage ratio upon acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioUponAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Maximum Leverage Ratio Upon Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioUponAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Maximum leverage ratio upon acquisition. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Post retirement benefit plan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanBenefitObligationBenefitsPaid_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Benefit Obligation, Benefits Paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassification Out Of Accumulated Other Comprehensive Income [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification out of Accumulated Other Comprehensive Income [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Security Exchange Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_SecurityExchangeName_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Security Exchange Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue from Contract with Customer [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finance lease obligations </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRecognitionAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue Recognition [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRemainingAvailableForGrant2000Plan_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remaining available shares under equity based compensation plan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRemainingAvailableForGrant2000Plan_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Remaining Available For Grant2000 Plan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesRemainingAvailableForGrant2000Plan_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The difference between the maximum number of shares (or other type of equity) authorized for issuance under the 2000 Plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Operating Activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash used by operating activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Comprehensive Income (Loss), Net of Tax [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other comprehensive (loss) income: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Expected Future Benefit Payment, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedFutureBenefitPaymentsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Defined benefit plan, benefit expected to pay for the balance of fiscal 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel"> Customer deposits (contract liabilities) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer deposits, current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change In Contract With Customer Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInContractWithCustomerLiability_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The change in the balance of the contract with customer liability. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Business combination, gross cash consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments to Acquire Businesses, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsToAcquireBusinessesGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, cash consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Commitments and Contingencies Disclosure [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedIncomeTaxesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income taxes payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedIncomeTaxesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accrued Income Taxes, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OperatingLeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Operating Lease, Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reconciliation of the Changes in Product Warranty Liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfProductWarrantyLiabilityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Product Warranty Liability [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Liability, to be Paid, Year Two </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2025 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Pro Forma Revenue </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionsProFormaRevenue_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net sales </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total assets acquired </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Liabilities assumed: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock units granted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationRestrictedStockUnitsAwardActivityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Defined Benefit Plans Disclosures [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Defined Benefit Plans Disclosures [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Common Stock, Shares, Outstanding, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Common Stock, Shares, Outstanding, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Shares, Outstanding </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business Acquisition [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts receivable, net of allowances </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryWorkInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Work in process </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryWorkInProcess_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory, Work in Process, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Disclosure [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Proceeds from Issuance of Long-term Debt, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Proceeds from Issuance of Long-Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProceedsFromIssuanceOfLongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Proceeds from the issuance of debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Investing activities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Investing Activities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Estimated Annual Amortization Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Investments, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Investments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_Investments_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Investments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Commitments and contingencies (Note 10) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Commitments and Contingencies </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Purchase price </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Tax Authority, Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Authority, Name [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Common Stock, Shares, Issued, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Shares, Issued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Variable Rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VariableRateDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Variable Rate [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Minimum [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MinimumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFrequencyOfPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Term loan principal payment frequency </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFrequencyOfPeriodicPayment_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Frequency of Periodic Payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Tax Authority, Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Authority, Name [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GranteeStatusDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Grantee Status [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other comprehensive income before reclassifications </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> OCI, before Reclassifications, Net of Tax, Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounting Standards Update </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Standards Update [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Acquisition of contract assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Asset, Increase (Decrease) for Contract Acquired in Business Combination </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Accrued Liabilities, Current, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued expenses and other current liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccruedLiabilitiesCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accrued Liabilities, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt Instrument </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stockholders’ equity: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stockholders' Equity Attributable to Parent [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Treasury Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Treasury Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Pro Forma Earnings Per Share, Diluted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Diluted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Amortization of Intangible Assets, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Amortization of Intangible Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Award Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AwardTypeAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Award Type [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Standard and Extended Product Warranty Accrual, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Balance at beginning of period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Balance at end of period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProductWarrantyAccrual_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Standard and Extended Product Warranty Accrual </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_StockCompensationPriorPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock Compensation Prior Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_StockCompensationPriorPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Compensation Prior Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_StockCompensationPriorPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Stock compensation prior plan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Business Combination, Consideration Transferred, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, purchase price </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferred1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Consideration Transferred </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TechnologyAndTechnicalKnowHowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Technology and Technical Know-How [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TechnologyAndTechnicalKnowHowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Technology And Technical Know How [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TechnologyAndTechnicalKnowHowMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Technology and technical know how. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Long-term Debt, Current Maturities, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Current Maturities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Less: current portion </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtCurrent_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Less: current portion </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Defense [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defense [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_DefenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Defense. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinistryOfFinanceIndiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Ministry of Finance, India [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MinistryOfFinanceIndiaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Ministry of Finance, India [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total lease payments </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Term of lease agreement </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseTermOfContract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Term of Contract </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StateAdministrationOfTaxationChinaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> State Administration of Taxation, China [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StateAdministrationOfTaxationChinaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> State Administration of Taxation, China [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Central Index Key </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityCentralIndexKey_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Central Index Key </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other expenses and income: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIncomeAndExpensesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Income and Expenses [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BloombergShortTermBankYieldIndexMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> BSBY [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BloombergShortTermBankYieldIndexMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Bloomberg Short Term Bank Yield Index [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BloombergShortTermBankYieldIndexMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Bloomberg Short-Term Bank Yield Index. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PerformanceVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Performance Vested Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PerformanceVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Performance Vested Restricted Stock [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_PerformanceVestedRestrictedStockMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Performance vested restricted stock. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Investments, Debt and Equity Securities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Disaggregation Of Revenue [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Disaggregation of Revenue [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other income, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Weighted-average discount rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finance Lease, Weighted Average Discount Rate, Percent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other intangible assets, net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherIntangibleAssetsNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Intangible Assets, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Equity-Based Compensation </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Organization, Consolidation and Presentation of Financial Statements [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination contingent earn-out eligible to receive, additional cash consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prepaid Expenses and Other Current Assets [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Prepaid Expenses and Other Current Assets [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SouthAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> South America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_SouthAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> South America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Scenario Forecast [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ScenarioForecastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Forecast [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total lease cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCost_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lease, Cost </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Adjustments to reconcile net income (loss) to net cash used provided by operating activities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Held-to-maturity Securities [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfHeldToMaturitySecuritiesLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Held-to-Maturity Securities [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Retained Earnings [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RetainedEarningsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Retained Earnings [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Operating lease assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Operating Lease Right Of Use Asset </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseRightOfUseAsset_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Increase (decrease) in operating lease right of use asset. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, common stock, shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Equity Interest Issued or Issuable, Number of Shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Business combination, common stock value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Consideration Transferred, Equity Interests Issued and Issuable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, after Year Five </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2028 and thereafter </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Share-based compensation vesting percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Rights, Percentage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Acquisition, Pro Forma Earnings Per Share, Basic </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Basic </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Entity Interactive Data Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_EntityInteractiveDataCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Entity Interactive Data Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Letters of credit outstanding amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LettersOfCreditOutstandingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Letters of Credit Outstanding, Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contract with customer liability offset by new customer deposits. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Liability Consideration Received </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityConsiderationReceived_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Amount of increase in contract with customer liability due to consideration that has been received or is receivable. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contract with customer liability increase in contract asset due to contract progress. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Asset, Cumulative Catch-up Adjustment to Revenue, Change in Measure of Progress </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassification out of Accumulated Other Comprehensive Income </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification out of Accumulated Other Comprehensive Income [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Forfeiture of shares </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardForfeitures_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Value, Restricted Stock Award, Forfeitures </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MiddleEastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Middle East [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_MiddleEastMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Middle East [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialGainLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Defined Benefit Plans Adjustment Net Actuarial Gain Losses [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialGainLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Accumulated defined benefit plans adjustment net actuarial gain losses. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialGainLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of Actuarial income (loss) [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid, Year One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2024 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Local Phone Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_LocalPhoneNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Local Phone Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Unrecognized Tax Benefits, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Unrecognized Tax Benefits, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Liability unrecognized tax benefits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_UnrecognizedTaxBenefits_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Unrecognized Tax Benefits </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfRecognizedIdentifiedAssetsAcquiredAndLiabilitiesAssumedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule of Final Purchase Price Allocation, After Adjustments of the Assets Acquired and Liabilities Assumed </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reconciliation of Numerators and Denominators of Basic and Diluted Income (Loss) Per Share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vesting period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Disclosure [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Share-based Compensation Arrangement by Share-based Payment Award [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Future Minimum Payments Required under Non-cancelable Leases </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Operating And Finance Lease Liability Maturity Table [Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingAndFinanceLeaseLiabilityMaturityTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Tabular disclosure of undiscounted cash flows of lessee's operating and finance lease liabilities. Including, but not limited to, reconciliation of undiscounted cash flows to operating and finance lease liabilities recognized in statement of financial position. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Lender Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lender Name [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Disaggregation of Revenue [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DisaggregationOfRevenueTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net Sales Disaggregated by Product Line and Geographic Area </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock option awards granted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Other Liabilities, Noncurrent, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other long-term liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Liabilities, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum leverage ratio </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Maximum Leverage Ratio </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatio_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Maximum leverage ratio. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Statement Location </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeStatementLocationDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Statement Location [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, Year One </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2024 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total liabilities assumed </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Operating lease liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Operating Lease Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInOperatingLeaseLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Increase (decrease) in operating lease liabilities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number of unvested restricted stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Other Operating Income, Net [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_OtherOperatingIncomeExpenseMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Other Operating Income (Expense) [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebt_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Increase (Decrease) in Prepaid Expense and Other Assets, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Prepaid expenses and other current and non-current assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Prepaid Expense and Other Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Liability, Defined Benefit Plan, Noncurrent, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued pension and postretirement benefit liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liability, Defined Benefit Plan, Noncurrent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Schedule Of Share Based Compensation Arrangements By Share Based Payment Award [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryDisclosureAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory Disclosure [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Number of stock options </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt Instrument, Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Name [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Document Fiscal Year Focus </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_DocumentFiscalYearFocus_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Document Fiscal Year Focus </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Payment of debt issuance costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PaymentsOfDebtIssuanceCosts_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Payments of Debt Issuance Costs </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee, Operating Lease, Liability, to be Paid, Year Two </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2025 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Vesting </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_VestingDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Vesting [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Earnings Per Share, Basic, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Earnings Per Share, Basic </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_EarningsPerShareBasic_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Basic income (loss) per share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Dividends declared per share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Dividends, Per Share, Declared </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_CustomerDepositsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Customer Deposit [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_CustomerDepositsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Customer Deposits [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_CustomerDepositsMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Customer deposits. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> (Increase) decrease in operating assets: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncreaseDecreaseInOperatingAssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase (Decrease) in Operating Assets [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Dividends </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DividendsCommonStockCash_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Dividends, Common Stock, Cash </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Assets [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TwoThousandIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amended and Restated 2000 Incentive Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TwoThousandIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Two Thousand Incentive Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_TwoThousandIncentivePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Two thousand incentive plan. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossProfit_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Gross profit </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GrossProfit_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Gross Profit </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Prepaid expenses and other current assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Prepaid Expense and Other Assets, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GuaranteesAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Guarantees [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Treasury stock (147 and 164 shares at September 30 and March 31, 2022, respectively) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel"> Treasury Stock, Value, Ending Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel"> Treasury Stock, Value, Beginning Balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Treasury Stock, Value, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_TreasuryStockValue_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Treasury Stock, Value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Term loan payment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentFaceAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Face Amount </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accrued compensation, accrued expenses and other current and non-current liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The increase (decrease) during the reporting period in the aggregate amount of liabilities incurred for obligations related to services received from employees, obligations and expenses incurred but not paid and noncurrent obligations. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockCompensationPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Stock Compensation Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockCompensationPlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Payment Arrangement [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Minimum funded debt to earnings before interest taxes depreciation and amortization. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Minimum Funded Debt to Earnings Before Interest Taxes Depreciation and Amortization </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MinimumFundedDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> EBITDA </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Liabilities and stockholders’ equity </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities and Equity [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income taxes paid </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Income Taxes Paid, Net, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Taxes Paid, Net </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Income Tax Authority </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IncomeTaxAuthorityAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Income Tax Authority [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Income (Loss), Including Portion Attributable to Noncontrolling Interest </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ProfitLoss_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Net income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FloorRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Floor Rate [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FloorRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Floor Rate [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FloorRateMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Floor rate. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current assets: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Assets, Current [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Asset, Expected Amortization, Year Four </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2027 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Asset, Expected Amortization, Year Two </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2025 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerNetAssetLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Net Asset Liability Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerNetAssetLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The net balance of current contract with customer assets and current contract with customer liabilities. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerNetAssetLiabilityCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net contract assets (liabilities) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityRevenueRecognizedIncludingAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue recognized included in contract liability </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityRevenueRecognizedIncludingAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract with Customer, Liability, Revenue Recognized including Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerLiabilityRevenueRecognizedIncludingAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Contract with customer, liability, revenue recognized including acquisition. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Supplemental Cash Flow Elements [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RefiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Refining [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RefiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Refining [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_RefiningMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Refining. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Numerator: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Numerator Diluted Income [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_NumeratorDilutedIncomeAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Numerator diluted income. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_EmployeeStockPurchasePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Employee Stock Purchase Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_EmployeeStockPurchasePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Employee Stock Purchase Plan [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_EmployeeStockPurchasePlanMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Identifies the employee stock purchase plan or ESPP. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Reversal of a liability recognized in the acquisition from the termination of an earn out agreement. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Change In Fair Value Of Contingent Consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ChangeInFairValueOfContingentConsideration_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Change in fair value of contingent consideration </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finance lease cost: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LeaseCostAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lease, Cost [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contributions to its defined benefit pension plan </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanContributionsByEmployer_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Plan Assets, Contributions by Employer </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyAccrualAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> BNI warranty accrual acquired </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyAccrualAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product Warranty Accrual Acquired </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyAccrualAcquired_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Product warranty accrual that was acquired from the opening balance sheet of the Company purchased. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_CoverAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Cover [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Product and Service </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_ProductsAndServicesDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product and Service [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountingChangesAndErrorCorrectionsAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounting Changes and Error Corrections [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Intangibles subject to amortization, Weighted Average Amortization Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryFinishedGoods_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Inventory, Finished Goods, Gross, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryFinishedGoods_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Finished products </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_InventoryFinishedGoods_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Inventory, Finished Goods, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedFutureEmployerContributionsRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Contributions expected for the balance of fiscal 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AllOtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> All Other [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AllOtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> All Other Countries [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AllOtherCountriesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> All other countries. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Current liabilities: </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Liabilities, Current [Abstract] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Maximum [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_MaximumMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Maximum [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OfficersAndKeyEmployeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Officers and Key Employees [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OfficersAndKeyEmployeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Officers And Key Employees [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_OfficersAndKeyEmployeesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Officers and key employees. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioCovenantPeriodUponClosingOfAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Maximum leverage ratio covenant period upon closing of acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioCovenantPeriodUponClosingOfAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Maximum Leverage Ratio Covenant Period Upon Closing Of Acquisition </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_MaximumLeverageRatioCovenantPeriodUponClosingOfAcquisition_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Maximum leverage ratio covenant period upon closing of acquisition. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Issuance of treasury stock </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Stock Issued During Period, Value, Treasury Stock Reissued </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Net Cash Provided by (Used in) Investing Activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Net cash used by investing activities </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Barber-Nichols, LLC. (BN) [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Barber Nichols L L C [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_BarberNicholsLLCMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Barber nichols, LLC. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Major Classifications of Inventories </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ScheduleOfInventoryCurrentTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Schedule of Inventory, Current [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Pension and Other Postretirement Benefits Items [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Expense (income) for product warranties </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Product Warranty Income Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> The (income) expense (included) charged (in) against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ProductWarrantyIncomeExpense_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Expense (income) for product warranties </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt instrument, basis spread on variable rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Basis Spread on Variable Rate </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Lessee Operating Lease Liability Payments Due Year Five And After Year Five </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Lessee operating lease liability payments due year five and after year five. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2028 and thereafter </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Maturity, Remainder of Fiscal Year </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Remainder of 2023 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Receivables billed but not paid under retainage provisions in its customer contracts </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Contract With Customer Receivables Billed But Not Paid Under Retainage </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract. </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> International Tax Jurisdictions [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ForeignCountryMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Foreign Tax Authority [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Term loan, balance </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Long-Term Debt, Gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentCarryingAmount_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Long-term debt, gross </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Finite-Lived Intangible Asset, Expected Amortization, Year Three </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> 2026 </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, shares authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Shares Authorized </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Short-term Debt, Type </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Short-Term Debt, Type [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Trading Symbol </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="dei_TradingSymbol_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Trading Symbol </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Reclassifications Out of Accumulated Other Comprehensive Loss by Component </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Selling, General and Administrative Expense, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Selling, general and administrative </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_SellingGeneralAndAdministrativeExpense_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Selling, General and Administrative Expense </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Title of Individual </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Title of Individual [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Balance Sheet Location </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Balance Sheet Location [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Comprehensive income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Comprehensive Income (Loss), Net of Tax, Attributable to Parent </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Total comprehensive income (loss) </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/totalLabel"> Accounts Payable, Current, Total </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accounts payable </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccountsPayableCurrent_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accounts Payable, Current </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Plan Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_PlanNameAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Plan Name [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Accumulated Other Comprehensive Income (Loss) [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Other Comprehensive Income (Loss) [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiveYearTermLoanWithBankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Five Year Term Loan With Bank Of America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiveYearTermLoanWithBankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Five Year Term Loan With Bank Of America [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_FiveYearTermLoanWithBankOfAmericaMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Five year term loan with Bank of America </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Title of Individual </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_TitleOfIndividualAxis_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Title of Individual [Axis] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DirectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Director [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="srt_DirectorMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Director [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Term loan payment period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentTerm_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument, Term </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Common stock, par value </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Common Stock, Par or Stated Value Per Share </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Gain on disposal or sale of property, plant and equipment </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_GainLossOnDispositionOfAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Restricted stock awarded </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_lbl" xlink:role="http://www.xbrl.org/2003/role/verboseLabel"> Restricted Stock, Granted </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Defined Benefit Plan Disclosure [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanDisclosureLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan Disclosure [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Revenue remaining performance obligation, expected timing of satisfaction, period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Debt Instrument [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DebtInstrumentLineItems_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Debt Instrument [Line Items] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Indefinite-lived Intangible Assets, Major Class Name </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Indefinite-Lived Intangible Assets, Major Class Name [Domain] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" xlink:role="http://www.xbrl.org/2009/role/negatedLabel"> Expected return on assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Defined Benefit Plan, Expected Return (Loss) on Plan Assets </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/terseLabel"> Amortization of Actuarial (loss) [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/label"> Accumulated Defined Benefit Plans Adjustment Net Actuarial Losses [Member] </link:label>
<link:label xml:lang="en-US" xlink:type="resource" xlink:label="ghm_AccumulatedDefinedBenefitPlansAdjustmentNetActuarialLossesMember_lbl" xlink:role="http://www.xbrl.org/2003/role/documentation"> Accumulated Defined Benefit Plans Adjustment Net Actuarial Losses. </link:label>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_EntityAddressCityOrTown" xlink:to="dei_EntityAddressCityOrTown_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable" xlink:to="us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareAbstract_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:to="us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ghm_NumeratorAbstract" xlink:to="ghm_NumeratorAbstract_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DomesticCountryMember" xlink:to="us-gaap_DomesticCountryMember_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime" xlink:to="ghm_PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination" xlink:to="us-gaap_ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_AmendmentFlag" xlink:to="dei_AmendmentFlag_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure" xlink:to="us-gaap_ContingentConsiderationClassifiedAsEquityFairValueDisclosure_lbl"/>
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<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:to="us-gaap_CapitalExpendituresIncurredButNotYetPaid_lbl"/>
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<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermBorrowings" xlink:to="us-gaap_ShortTermBorrowings_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ghm_ContractWithCustomerAssetsAndLiabilitiesLineItems" xlink:to="ghm_ContractWithCustomerAssetsAndLiabilitiesLineItems_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ghm_ChangeInContractWithCustomerAssetLiabilityNet" xlink:to="ghm_ChangeInContractWithCustomerAssetLiabilityNet_lbl"/>
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<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="us-gaap_Goodwill_lbl"/>
<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredIncomeTaxAssetsNet" xlink:to="us-gaap_DeferredIncomeTaxAssetsNet_lbl"/>
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<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:to="us-gaap_PaymentsForRepurchaseOfCommonStock_lbl"/>
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1 Subsequent Filing that References this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 6/08/23  Graham Corp.                      10-K        3/31/23  113:21M                                    Donnelley … Solutions/FA
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