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Xiamen Sino Star Machinery
Suzhou Since Gas System Co., Ltd.
Hangzhou Chuankong General Equipment Co., Ltd.
Wuxi Zhongrui Air Separation Equipments Co., Ltd.
Beijing Sunny Young Technology Company Limited
TIANJIN PUHUI SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
Wuhu Frontage Imp. and Exp. Co., Ltd.
Hokaido Vacuum Technology (Int'l) Group Limited
Changsha Kingkar Eco-Technologies Co., Ltd.
Zhejiang Yuanda Air Separation Equipment Co., Ltd.