quality tungsten wire in bulb is made of pure tungsten powder sintered into strips by powder metallurgy method, and then drawn. Tungsten aluminum wire commonly used in high temperature resistant shockproof filaments, double helix filaments, grid cathodes, folded filaments, tungsten twisted wires and other parts; plating a layer of gold on the surface of quality tungsten wire in bulb can increase the resistance of quality tungsten wire in bulb Corrosion and anti-oxidation properties, often used as electrode wires of copiers, corrosive electron emission materials, high-temperature physics and meteorological instrument materials, etc.

Uses: Manufacture of electric light source and electric vacuum parts, used as high temperature heating element and high temperature structural parts, used to make tungsten spiral for vacuum evaporation.

Appearance: During the production process, the surface of the quality tungsten wire in bulb will be coated with graphite milk, which is relatively uniform black, and the graphite milk will be removed to show a metallic luster. The surface of quality tungsten wire in bulb is smooth without burrs, cracks, scratches, pits, unevenness and oil stains.