... resistance, long service life, resistance to corrosion..Technical process: Tungsten Podwer → Isostatic Pressing → Bar Billet →Sinering → Semi- ... .002Mg0.0001Pb0.0001Sn0.0001Sb0.0001C0.00085As0.00017. Application:Tungsten rod/bar can be widely used in illumination, heater ... light bulb, make lattice side rod, framework, leading wire, electrode, heater and contact materials and so on. round tungsten rod