Tianjin Zhongkejian Chemical Co., Ltd. ,founded in 1985, is specialized in the manufacture of compound essence, rare earth extractant and fine chemicals. With four subsidiaries, namely Tianjin Shuotai Hi-tech Co., Ltd., Hebei Kejian Compound Essence Co., Ltd., Cangzhou Huaming Spice Co. Ltd. and Tianjin Zhongxiang Imp. & Exp. Co., Ltd., we mainly produce rare earth extractant 507, P204, copper extractant N5640, 984, coumarin, dihydrocoumalin,...
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