Jinan Huayun Kelei Lightning Protection Technology Co., Ltd.Shandong Sheng, China
Eudyna Devices USA, Inc.
Mateiciuc AsCzechia
Stinger Oil Tools LLCUnited States
Guangdong Juchen Intellectual Property Agency Co., Ltd.Guangdong Sheng, China
Dakin, Inc.
Hangzhou Junyijie Stainless Steel Co., LtdZhejiang Sheng, China
Foshan Jiyan Zhilian Technology Co., Ltd.
Shuangyashan Tianhong Machinery Manufacturing Co., Ltd.Heilongjiang Sheng, China
ELSOL PRODUCTS (SHANGHAI) CORPORATIONShanghai Shi, China
Tianjin Electromechanical Vocational and Technical CollegeTianjin Shi, China
Shanxi Institute of Engineering Technology