Zhengzhou Meinl Chemical Co., Ltd.?with chemical industry as the core ，Specialized is engaged in the import and export of fluorescent whitening agent and dye intermediates business comprehensive enterprise main products :DSD ACID (CAS NO.81-11-8),PNTOSA (CAS NO.121-03-9),DNST (CAS NO.128-42-7)，Sulfanilic acid (CAS NO 121-57-3), Sodium sulfanilate(CAS NO 515-74-2),The quality and the technical of the prodcts takes the lead in China and The world as well. is realated at dye ,medicine ?pesticid...
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