Trademark W1, W2, WAL1, WAL2 , W-Ni-Fe, WMO50, WMO20 Specification:dia (0.1-1.6)*L mm Density: W>99.92% Standard :GB/T4181 Tungsten wireThe raw material is high-purity, and adopt the advanced technology,Fine thermostability and combination property function,This product which is mainly put into electric light source, electronic device, lamp filament and taenidium use.ASTM F288 - 96(2009) Standard ...