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| NAICS [2012] → |
| NAICS Code | N.A. Industry [2012] | SIC Codes | ||
|---|---|---|---|---|
| (4-digit) | |||
| 331410 | Nonferrous Metal (except Aluminum) Smelting and Refining | ⇒ | 3331, 3339 | |
| 331411 | Primary Smelting and Refining of Copper [2007] | ⇒ | 3331 | |
| 331419 | Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum) [2007] | ⇒ | 3339 | |