Export products 1.Purity:99.95% 2.Standard:GB,ASTM High purity & Best price Tantalum disc1)Pictures product specifications:dia70mm ... marketing of refractory metal.he major products include billets,plates/sheets,foils,tubes,bars,wires,shapes,forgings castings,powder ... and downstream products(equipment)made of titanium,tungsten,molybdenum,niobium,zirconium,hafnium,nickel,and their alloys.The products are ...