Variant of NAICS 2012 - Energy sector
- Non E - Industries not included in the energy sector
- 31-33e - Manufacturing, non E
- 331 - Primary metal manufacturing
- 3314 - Non-ferrous metal (except aluminum) production and processing
- 33142 - Copper rolling, drawing, extruding and alloying
- 331420 - Copper rolling, drawing, extruding and alloying
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