Fujian Pengkun Industrial Co., Ltd.Fujian Sheng, China
Tianjin Hainuo Technology Co., Ltd.Tianjin Shi, China
Yonshin Denki KK
Shenzhen Stengda Technology Co., Ltd.Guangdong Sheng, China
Copper John Corp.United States
Shandong Xinhua Special Steel Group Co. Ltd.Shandong Sheng, China
Ningbo Shangfuyuan Environmental Protection Technology Co., Ltd.Zhejiang Sheng, China
Jiangsu Zhuanyi Purification Technology Co., Ltd.Jiangsu Sheng, China
Nippon Kako Toryo Co. Ltd.Japan
Yancheng Dafeng Dalong casting and maunfacturing companyJiangsu Sheng, China
king enterprise co., ltd.
Henan Huayu Science and Technology Industry Corporation