... High melting point, High-density, high temperature oxidation resistance, long service life, resistance to corrosion..Technical process: Tungsten Podwer ... .0001Pb0.0001Sn0.0001Sb0.0001C0.00085As0.00017. Application:Tungsten rod/bar can be widely used in illumination, heater ... automobile and the tractor light bulb, make lattice side rod, framework, leading wire, electrode, heater and contact materials ...