high quality and purity hardness superfine spraying extensibility tungsten metal rod factory price

Tungsten rod has high density, high melting point, small volume, high wear resistance, high hardness, high tensile strength, high extensibility, high temperature resistance and many other excellent properties. It is mainly used for manufacturing lamp filament, lighting source parts, vacuum electronic parts, heating units in high-temperature furnace, structural parts in high-temperature furnace, electrical contacts, rare earth industry, vacuum coating, etc.