6 CHROMIUM METAL; TANTALUM SCRAP; TANTALUM WIRE; TANTALUM ANODES; TUNGSTEN POWDER; TUNGSTEN PELLETS; MOLYBDENUM SCRAP; COLUMBIUM WITH 1% ZIRCONIUM; TUNGSTEN CARBIDE, IRON, NICKEL AND COBALT BASED HIGH ALLOY METAL POWDER; STAINLESS STEEL METAL POWDER; AND NICKEL AND COBALT METAL POWDER; TFE FLUOROCARBON POWDERS