| Naics index | Naics index description |
|---|---|
| 331110 | Hoops made in iron and steel mills |
| 331110 | Hoops, galvanized, made in iron and steel mills |
| 331110 | Hot-rolling iron or steel products in iron and steel mills |
| 331110 | Ingot made in iron and steel mills |
| 331110 | Iron ore recovery from open hearth slag |
| 331110 | Iron sinter made in iron and steel mills |
| 331110 | Iron, pig, manufacturing |
| 331110 | Manganese metal ferroalloys manufacturing |
| 331110 | Mesh, wire, made in iron and steel mills |
| 331110 | Mini-mills, steel |