... bar 1.Grade W-1 W-2 W-3 W-4 2.Purity 99.95% 3.Dia. 2-100mm * L(<800)mm Straightening Tungsten bar ... %Note: potassium is not counted in the impurity contentApplication:Tungsten bar is mainly used to found ingredient of material, cutter and ... kinds of heat-resistant steel. We supply tungsten wire, tungsten bar, tungsten plate, tungsten sheet, tungsten rod, tungsten electrode, tungsten fabricated ...