| 75 / | HD | SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES |
| 330 | DF | PROCESSES {9} |
| 10.1 | DF | .~ Electrothermic processes (e.g., microwave, induction, resistance, electric arc, plasma, etc.) {17} |
| 10.62 | DF | .~.~ Reducing or smelting {1} |
| 10.63 | | .~.~.~ Producing or treating Iron(Fe) or Iron alloy |