Jiangsu Hengtong New Energy Electric Technology Co., Ltd.
Chuanbei Vacuum Technology Beijing Co. Ltd.
Zhejiang Jiangshan Wufu Door Co. Ltd.
JOANNEUM RESEARCH Forschungsgesellschaft mbHSteiermark, Austria
Yancheng Huayuan Petroleum Machinery Co., Ltd.
Chongqing Qiulong Technology Co., Ltd.Chongqing Shi, China
Shanghai Yiming Filtration Technology Co., Ltd.
St. Georgen Technologiezentrum GmbH
Shenzhen Shentongxin Trading Co. Ltd.
Guangzhou Yileyuan Biotechnology Co., Ltd.
Kanie Propane Co. Ltd.
Shaoxing Lianrun Hardware Products Co., Ltd.