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Qingdao Kaijie Heavy Industry Machinery Co., Ltd.
Liaoning Hanzheng Environmental Protection Equipment Engineering Co., Ltd.
Shenzhen Lianxin Testing Equipment Co., Ltd.
CHONGQING ZANYO ELECTROMECHANICAL AND MACHINERY CO., LTD.
Qingdao Olympia Heat Energy Equipment Co., Ltd.
Liaoyang Hongji Machinery Co., Ltd.
Shandong Better Environmental Protection Technology Co., Ltd.
Guangxi Huihuang Langjie Environmental & Tech Co., Ltd.