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| 2720 | Alloying purchased copper | |
| 2720 | Alloying purchased non-ferrous metals (except aluminum, copper) | |
| 2720 | Alloying purchased precious metals | |
| 2720 | Alumina (aluminum oxide), refining from bauxite | |
| 2720 | Alumina, refining into aluminum | |
| 2720 | Aluminum alloys, made from purchased metals | |
| 2720 | Aluminum alloys, made in primary aluminum plants | |
| 2720 | Aluminum bar, made by extruding purchased aluminum | |
| 2720 | Aluminum basic shapes (e.g., bar, ingot, rod, sheet), made from purchased aluminum | |
| 2720 | Aluminum basic shapes (e.g., bar, ingot, rod, sheet), made in primary aluminum plants | |
| 2720 | Aluminum billet, made from purchased aluminum | |
| 2720 | Aluminum flakes, made from purchased aluminum | |
| 2720 | Aluminum foil laminates, made from purchased foil | |
| 2720 | Aluminum foil, made by flat rolling purchased aluminum | |
| 2720 | Aluminum freezer foil, made from purchased foil | |
| 2720 | Aluminum ingot and other primary production shapes, made in primary aluminum plants | |
| 2720 | Aluminum ingot, made from purchased aluminum | |
| 2720 | Aluminum oxide refining | |
| 2720 | Aluminum paste, made from purchased aluminum | |
| 2720 | Aluminum pipe and tube, made from purchased aluminum | |
| 2720 | Aluminum plate, made from purchased aluminum | |
| 2720 | Aluminum powder, made from purchased aluminum | |
| 2720 | Aluminum rod, made by extruding purchased aluminum | |
| 2720 | Aluminum rolling, casting, extruding | |
| 2720 | Aluminum sheet, made by flat rolling purchased aluminum | |
| 2720 | Aluminum wire and cable, uninsulated, made in wire drawing plants | |
| 2720 | Aluminum wire made in rolling mill | |
| 2720 | Aluminum, producing from bauxite or alumina | |
| 2720 | Aluminum, recovering from scrap or dross | |
| 2720 | Anodes, for electrolytic refining, copper, manufacturing | |
| 2720 | Anodes, for electroplating, copper, made from purchased metals | |
| 2720 | Anodes, for electroplating, non-ferrous metals (except aluminum, copper), made from purchased metals | |
| 2720 | Anodes, for electroplating, precious metals, made from purchased metals | |
| 2720 | Antimony smelting and primary refining | |
| 2720 | Bar, copper or copper alloy, made from purchased metal | |
| 2720 | Bar, made by extruding purchased aluminum | |
| 2720 | Bar, made by rolling purchased aluminum | |
| 2720 | Bar, made from purchased aluminum | |
| 2720 | Bar, made from purchased non-ferrous metal (except aluminum, copper) | |
| 2720 | Bars, made in primary copper smelting and refining mills | |
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