... . Of Jiangxi, and the United States K Engineering Co., Ltd., It's from 2002, located in Changzhou City, the Xixiashu industrial ... of tungsten carbide powder, and 1, 500 tons of mixture. It's a science and technology enterprise capable of tungsten mining ... , ore dressing, smelting, and milling, In addition, it and has the right to operate import and export............ carbide ...