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Cotec Industrial Development Co.,Ltd.
Zhengzhou Chorus Lubricant Additive Co., Ltd
Shandong Dawn International Trading Co., Ltd.
Shandong Kaitai Petrochemical Co., Ltd
Quanzhou Haiyixing Bioengineering Co., Ltd
Hangzhou Jiuyuan Gene Engineering Co., Ltd
Zhejiang Zhongzhi Valve Group Co., Ltd
Henan Lite Refractory Material Co., Ltd
Henan Dongxing Chemical Co.,Ltd
Shandong Kingbo Agro Chemical Co.,Limited
Anhui Sinotech Industrial Co., Ltd
Hubei Youshida Technology Co., Ltd.
Gloriaful Industry Co., Limited