Colombo SpAComo, Italy
Wenzhou Dengbao Hardware Co. Ltd.Zhejiang Sheng, China
Anhui Wangu Li'an Electric Co., Ltd.Anhui Sheng, China
Zhejiang Patney Contact Co., Ltd.Zhejiang Sheng, China
Parker Chemical Co.
Dong AnChina
Hangzhou Lin'an Jinlun Tools FactoryZhejiang Sheng, China
Dalian Zhongying Energy Management Co., Ltd.Liaoning Sheng, China
Marine Equipment Research Institute of Guangdong Academy of Sciences
Krantz GmbHNordrhein-Westfalen, Germany
Sichuan Institute of Materials and Technology
Welko Industriale SpA