... element extracted from wolframite, scheelite, Tungsten (W) is a hard, brittle ... 1. Tungsten wire,black Tungsten wire,polished Tungsten wire, straight Tungsten wire, super thin Tungsten wire ... tungsten electrode, W-Rex electrodes 3.Tungsten strap,Tungsten rod 4.Tungsten screw, Cu-W alloy, Tungsten powder,high specific gravity Tungsten alloy materials,Tungsten part and other Tungsten products. tungsten ...