4,4'-Oxydiphthalic anhydride

Changzhou waston chemical technology Co.,Ltd is a global distributor&custom manufacturer which is located in Changzhou Jiangsu and owns three production sites in Jiangsu，Shandong and Jiangxi province. Waston chem engaged in the research, production and sales of naphthalene intermediates，bisphenol intermediates and other function monomer Intermediates for several years. Depend on the strict management and certificated by the Chinese official，Waston chem is also a professional importer&exporter of hazardous material and toxic chemicals.