David C. Wang,
Xiangtan Weida Electromechanical Manufacturing Co., Ltd.
Chongqing Runyue Machinery Co., Ltd.Chongqing Shi, China
Shanghai Longren Construction and Development Group Co., Ltd.Shanghai Shi, China
Ningbo Wenkai Grinding Tools Co., Ltd.Zhejiang Sheng, China
Zhejiang Xinpu Automation Technology Co., Ltd.Zhejiang Sheng, China
Hubei Fenglei Environmental Protection Technology Co., Ltd.Hubei Sheng, China
Parang Co., Ltd.South Korea
Kroll GmbHGermany
Hangzhou Miou Instrument Co., Ltd.Zhejiang Sheng, China
Hefei Wanye Hydraulic Components Co., Ltd.Anhui Sheng, China
Shanghai Dasheng Sanitary Products Manufacturing Co., Ltd.