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Suzhou Since Gas System Co., Ltd.
Changsha Kingkar Eco-Technologies Co., Ltd.
Wuxi Zhongrui Air Separation Equipments Co., Ltd.
Hangzhou Chuankong General Equipment Co., Ltd.
Guangzhou Huilin Air Separation Equipment Co., Ltd.
Shenzhen Guanglei Electronic Co., Ltd.
TIANJIN PUHUI SCIENCE AND TECHNOLOGY DEVELOPMENT CO., LTD.
Beijing Sunny Young Technology Company Limited
Zhejiang Yuanda Air Separation Equipment Co., Ltd.