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HUASHENG PIPELINE TECHNOLOGY CO.,LTD
Jinan ZZ International Trade Co., Ltd.
Tianjin TYWH Imp. & Exp. Co., Ltd.
ZHENGZHOU MEIYA CHEMICAL PRODUCTS CO., LTD.
Sinochem Qingdao Co., Ltd.
Hongkong Baijin International Trading Co., Ltd.
Xuzhou First Chemical Co., Ltd.
Tianjin Tiger International Trade Co., Ltd.
Xilong Scientific Co., Ltd.
Qingzhou Zhongyuan Chemical Industry Co., Ltd.
Guangzhou New Zhonglian Building Material Co., Ltd.
Xinle City Hongyuan Carbon Black Sales Center
Balikun Hasake Chemical Plant
Shanghai Sunwise Chemical Co., Ltd.
Xiamen Ditai Chemicals Co., Ltd.
Dalian Chem Imp.& Exp. Group Co., Ltd.
Qingdao Hexin Machinery Co., Ltd.