... :50~95USD/Kg 5.Quick time High purity Tungsten wire for Vacuum Evaporation Material: JW, TW, JWL, JWW. category Twisted and ... customized according to specific requirements 2.Application:1) For production of filaments for lamps of coiled-coil or three-coiled incandescentlamp, ... hi-color temperature lamps,etc.2) For making supports and electron tubes3) electric vacuum parts, colorful or black and white ...