Refractory metals which including nickel, titanium, tungsten, molybdenum, tantalum, niobium, zirconium, hafnium, copper. Product forms maintain wire, rod, foil, strip, sheet, tube, stamping, forgings, fastener, flange, pipe fittings, sputtering targets, crucible, and furnace parts which used in electronic crystal growth vacuum furnaces. It is widely used in aerospace, medical, chemical, metallurgy, petro, valves, nuclear industry, chemical fiber, machinery, shipbuilding, electric power and other industries.