2,7-Dihydroxy Naphthalene-3,6-Disulphonic Acid Sodium Salt Suppliers
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Shandong Pingyuan Zhongchen Chemical Co.,Ltd.
China Shandong Pingyuan Zhongchen Chemical Co.,Ltd. manufactures dye and medical intermediates of naphthalene series. Our product line includes naphthalene disulfonic acid sodium salt, L acid and 1-acetylamino-7-naphthol. We are accredited with ISO 9001:2000 certification. More...
www.zhongchen-chem.com
China Shandong Pingyuan Zhongchen Chemical Co.,Ltd. manufactures dye and medical intermediates of naphthalene series. Our product line includes naphthalene disulfonic acid sodium salt, L acid and 1-acetylamino-7-naphthol. We are accredited with ISO 9001:2000 certification. More...
www.zhongchen-chem.com
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