Tungsten carbide has a overall performance of high hardness, high strength, high density, corrosion resistance, high temperature oxidation resistance and low coefficient of expansion. Its life expectancy is ten times or even several times over steel Tungsten carbide Commonly used for cold heading die, drawing die, hexagonal die, spiral mold, etc., Tungsten carbide die is very widely used in the mold industry. And the industry generally uses tungsten carbide cobalt.