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Zhejiang Lingxin Polyurethane Co., Ltd.
Qingzhou Zhongyuan Chemical Industry Co., Ltd.
Tianjin Zhongxin Chemtech Co., Ltd.
China Jiangsu International Economic and Technical Cooperation Group, Ltd. Chemical I/E Branch
Shenzhen Asenware Test and Control Technology Co., Ltd.
Commander Group Ltd.
UNIOUE (LUFENG) TECHNOLOGY CO., LTD.
Ruian Hongchang Industry Control Equipment Co., Ltd.
Qingdao Doeast Chemical Co., Ltd.