Variant of NAICS 2012 - Energy sector
- Non E - Industries not included in the energy sector
- 31-33e - Manufacturing, non E
- 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
- Date modified: