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Gray and Ductile Iron Foundries
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SIC Industry 3321   —   NAICS² Industry  331511

SIC [1987]  →  Manufacturing  →  Primary Metal Industries  →  Iron & Steel Foundries  →  Gray & ductile iron foundries

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Businesses & Products of SIC Industry 3321
  • Brake shoes, railroad: cast iron
  • Car wheels, railroad: chilled cast iron
  • Castings, compacted graphite iron
  • Castings, gray iron and semisteel
  • Cooking utensils, cast iron
  • Couplings, pipe: pressure and soil pipe-cast iron
  • Ductile iron castings
  • Elbows, pipe: pressure and soil pipe-cast iron
  • Fittings, soil and pressure pipe: cast iron
  • Foundries, gray iron and semisteel
  • Gas pipe, cast iron
  • Gray iron foundries
  • Ingot molds and stools
  • Manhole covers, metal
  • Nipples, pipe: pressure and soil pipe-cast iron
  • Nodular iron castings
  • Pipe and fittings, soil and pressure: cast iron
  • Railroad car wheels, chilled cast iron
  • Rolling mill rolls, iron: not machined
  • Sash balances, cast iron
  • Sewer pipe, cast iron
  • Water pipe, cast iron

Description of SIC Industry 3321 — Gray and Ductile Iron Foundries
Establishments primarily engaged in manufacturing gray and ductile iron castings, including cast iron pressure and soil pipes and fittings.

²  North American Industry Classification System (NAICS)

SIC [1987] Industry 3321     ⇒     NAICS [2012] Industry Codes

NAICS Code  North American Industry    SIC Codes
In ascending order
331511Iron Foundries  ⇒  3321,  3322

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