Tianjin Minle Chemical Import & Export Co. Ltd., is situated in Tianjin City and it is a branch office of Gansu Jinshi Chemical Co.,Ltd,. Gansu jinshi chemical Co.,Ltd is a professional manufacturer of chrome based chemicals ,water treatment and other chemical materials such as Chrome oxide green,Chromic Acid ,Sodium Bichromate ,Potassium Bichromate ,Basic Chromium Sulphate, Sodium sulphide ,Sodium Hydrosulphide, Aluminium Hydroxide and Aluminum sulphate and so on.