... ProvinceNo. of Employees 2000Main ProductsTungsten Ore, APT, WC, various cemented carbide products :rod, blank, plate, blade, rings, button tips, ... furnaces (Japan)Key TechniciansFormer key technicians from CB Carbide, TaiwanTechnologyFrom CB carbide, Taiwan Why is Shirui so Unique?A. Rich ... samples are available for your testing in advance. high purity 99.95% WP tungsten for tungsten copper contacts