Variant of NAICS 1997 - Goods and services
- 11-33 - Goods
- 31-33 - Manufacturing
- 331 - Primary Metal Manufacturing
- 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 Refining
- Date modified: