Primary metal manufacturing
- 331 - Primary metal manufacturing
- 3311 - Iron and steel mills and ferro-alloy manufacturing
- 33111 - Iron and steel mills and ferro-alloy manufacturing
- 331110 - Iron and steel mills and ferro-alloy manufacturingUS
- 3312 - Steel product manufacturing from purchased steel
- 33121 - Iron and steel pipes and tubes manufacturing from purchased steel
- 331210 - Iron and steel pipes and tubes manufacturing from purchased steel
- 33122 - Rolling and drawing of purchased steel
- 331221 - Cold-rolled steel shape manufacturingUS
- 331222 - Steel wire drawingUS
- 3313 - Alumina and aluminum production and processing
- 33131 - Alumina and aluminum production and processing
- 331313 - Primary production of alumina and aluminumCAN
- 331317 - Aluminum rolling, drawing, extruding and alloyingCAN
- 3314 - Non-ferrous metal (except aluminum) production and processing
- 33141 - Non-ferrous metal (except aluminum) smelting and refining
- 331410 - Non-ferrous metal (except aluminum) smelting and refiningUS
- 33142 - Copper rolling, drawing, extruding and alloying
- 331420 - Copper rolling, drawing, extruding and alloying
- 33149 - Non-ferrous metal (except copper and aluminum) rolling, drawing, extruding and alloying
- 331490 - Non-ferrous metal (except copper and aluminum) rolling, drawing, extruding and alloyingCAN
- 3315 - Foundries
- 33151 - Ferrous metal foundries
- 331511 - Iron foundriesUS
- 331514 - Steel foundriesCAN
- 33152 - Non-ferrous metal foundries
- 331523 - Non-ferrous die-casting foundriesCAN
- 331529 - Non-ferrous foundries (except die-casting)CAN
- 331 - Primary metal manufacturing
- 3311 - Iron and steel mills and ferro-alloy manufacturing
- 33111 - Iron and steel mills and ferro-alloy manufacturing
- 331110 - Iron and steel mills and ferro-alloy manufacturingUS
- 3312 - Steel product manufacturing from purchased steel
- 33121 - Iron and steel pipes and tubes manufacturing from purchased steel
- 331210 - Iron and steel pipes and tubes manufacturing from purchased steel
- 33122 - Rolling and drawing of purchased steel
- 331221 - Cold-rolled steel shape manufacturingUS
- 331222 - Steel wire drawingUS
- 3313 - Alumina and aluminum production and processing
- 33131 - Alumina and aluminum production and processing
- 331313 - Primary production of alumina and aluminumCAN
- 331317 - Aluminum rolling, drawing, extruding and alloyingCAN
- 3314 - Non-ferrous metal (except aluminum) production and processing
- 33141 - Non-ferrous metal (except aluminum) smelting and refining
- 331410 - Non-ferrous metal (except aluminum) smelting and refiningUS
- 33142 - Copper rolling, drawing, extruding and alloying
- 331420 - Copper rolling, drawing, extruding and alloying
- 33149 - Non-ferrous metal (except copper and aluminum) rolling, drawing, extruding and alloying
- 331490 - Non-ferrous metal (except copper and aluminum) rolling, drawing, extruding and alloyingCAN
- 3315 - Foundries
- 33151 - Ferrous metal foundries
- 331511 - Iron foundriesUS
- 331514 - Steel foundriesCAN
- 33152 - Non-ferrous metal foundries
- 331523 - Non-ferrous die-casting foundriesCAN
- 331529 - Non-ferrous foundries (except die-casting)CAN
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