CHINATECH (TIANJIN) CHEMICAL CO.,LTD. (hereinafter referred to as "Chinatech Chem") ,is an innovative national high-tech enterprise with the mission of "focusing on the R & D and production of advanced functional polyimide monomers and committed to promoting the development of global polyimide material industry". 　　Chinatech Chem headquarter integrates R & D, sales and operation. It is located in Tianjin, a beautiful coastal city with developed transportation and prosperous economy; Chinatech Chem's main production base is located in Yulin City, Shaanx...