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Guangzhou Yulong Chemical Co., Ltd. specializes in the production and research and development of high-performance organic pigments and fluorescent whitening agents. At present, we have conducted technical exchanges and development cooperation with m
GreatAp Chemicals is one of Chinese chemical manufacturer devoted to kinds of fine & special chemicals with R & D, Production and International trade from 1992. Water treatment Chemicals, Pharmaceutical & Dye intermediates, Auxiliary Agen