We are committed to chemical intermediates, pharmaceutical intermediates, ion exchange resin R & D, production and sales. Our company is a specialized manufacturer and trader of polyimide monomer of pyromellitic dianhydride (PMDA) ,4,4'-Diaminodiphenylether(DPE), 2,2'-Dimethyl-4,4'-diamino biphenyl (m-TB-HG), etc. The quality of our products can meet the leading standards in the world. Our factory Sticking to such philosophy of on the basis of honest business; guided by the leading technology; taking customers as number one priority; to get survival by excellent quality, adopts leading method and management system, and has establish a set of unique and production management system successfully. Our customers around the global, products are exported to Southeast Asia, Europe, and America. ..