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E-TECH (Dalian) Co.,Ltd
Guangxi Huihuang Langjie Environmental & Tech Co., Ltd.
CHONGQING ZANYO ELECTROMECHANICAL AND MACHINERY CO., LTD.
Shandong Better Environmental Protection Technology Co., Ltd.
Qingdao Kaijie Heavy Industry Machinery Co., Ltd.
Liaoyang Hongji Machinery Co., Ltd.
Qingdao Olympia Heat Energy Equipment Co., Ltd.
Weifang Better Heavy Machinery Science and Technology Co., Ltd.
Qingdao Guangneng Rubbers & Plastics Chemical Co., Ltd.
Liaoning Hanzheng Environmental Protection Equipment Engineering Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.