75 / | HD | SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES |
330 | DF | PROCESSES {9} |
392 | DF | .~ Producing or treating free metal {10} |
414 | DF | .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7} |
585 | DF | .~.~.~ Nonferrous {25} |
693 | DF | .~.~.~.~ Lead(Pb) {3} |
697 | .~.~.~.~.~ Treating molten Lead(Pb) {3} | |
698 | DF | .~.~.~.~.~.~> By vacuum |
699 | DF | .~.~.~.~.~.~> Adding gas {1} |
701 | DF | .~.~.~.~.~.~> Adding solid {1} |