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Shaanxi Zhongtuo Mine Equipment Co.,Ltd
Guangzhou Huilin Air Separation Equipment Co., Ltd.
Suzhou Since Gas System Co., Ltd.
Zhejiang Yuanda Air Separation Equipment Co., Ltd.
Shenzhen Guanglei Electronic Co., Ltd.
Wuxi Zhongrui Air Separation Equipments Co., Ltd.
Hangzhou Chuankong General Equipment Co., Ltd.
Qingdao Hexin Machinery Co., Ltd.
TIANJIN PUHUI SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
Changzhou Andwin International Corporation Limited