CHINATECH (Tianjin) CHEMICAL CO., LTD. is a high-tech enterprise engages in the research and production, on basis of technological power Tianjin University, Hebei University Science Technology, company steadily growing. By industrial chain model ...

Shandong Helishi Zhongjie Chemical Co., Ltd is specializing in the production of Polyimide monomer for polyimide film, resin and insulation materials. Our main products are Pyromellitic Dianhydride(PMDA) 4,4\'-Diaminodiphenyl Ether(ODA). The annual ...