... many varieties of tungsten and molybdenum crucibles for single crystal growing process as a high temperature durability container ... W, Mo,TZM, , Ti, WMo allysupply range: nut, bolt, rivet, screw, cap, fastner,accoridng to USA, China, Europe , National ... furnace for LED crystal growing furnace, silicon crystal furnace, vaccum furnace,molybdenum & tungsten fixed parts Molybdenum nut, screw, rivet, bolt, ...