| 331491 |
Zinc rolling, drawing, or extruding purchased metals or scrap |
| 331491 |
Zirconium and zirconium alloy bar, rod, billet, sheet, strip, and tubing made from purchased metals or scrap |
| 331491 |
Zirconium rolling, drawing, or extruding purchased metals or scrap |
| 331492 |
Alloying purchased nonferrous metals (except aluminum, copper) |
| 331492 |
Detinning scrap (e.g., cans) |
| 331492 |
Germanium recovering from scrap and/or alloying purchased metals |
| 331492 |
Gold recovering from scrap and/or alloying purchased metals |
| 331492 |
Ingot, nonferrous metals (except aluminum, copper), secondary smelting and refining |
| 331492 |
Iridium recovering from scrap and/or alloying purchased metals |
| 331492 |
Lead recovering from scrap and/or alloying purchased metals |