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About Us Jiangsu Huachang Tools Manufacturing Co., is a Sino foreign joint venture with Danyang Yongchang diamond Co., Ltd., with a registered capital of US $730 thousand. China's Danyang city Chang Hai Diamond Products Co., Ltd is established in 1982, engaged in this industry for more than 20 years, in December 1992 and the Hongkong science and engineering technology company established a joint venture in Danyang Huachang Diamond Tools Manufacturing Co., ltd.. Now the two company bases are located at No. 818, Qi Liang Road, Danyang Economic Development Zone, Jiangsu. Location: Shanghai Nanjing Expressway, Shanghai Nanjing high-speed railway passing through. The factory is 200 kilometers away from Shanghai and 68 kilometers from Nanjing. .. MORE+