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Suzhou Since Gas System Co., Ltd.
Shenzhen Guanglei Electronic Co., Ltd.
Wuxi Zhongrui Air Separation Equipments Co., Ltd.
Changsha Kingkar Eco-Technologies Co., Ltd.
Zhejiang Yuanda Air Separation Equipment Co., Ltd.
Hangzhou Chuankong General Equipment Co., Ltd.
Qingdao Hexin Machinery Co., Ltd.
TIANJIN PUHUI SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
Hokaido Vacuum Technology (Int'l) Group Limited