Theseis Hicoo Tungsten Carbide Co., Ltd.Casting balls are extensive used in cement build materials, metal mine, coal slurry, thermal power plant, chemical engineering, ceramic industry, dope industry, light industry some as papermaking and magnetic material etc powder prepared and deeply produce. The casting ball hardness is high, and wearing cost is lowness, the toughness is very good so that the casting balls breakage is fewness.