Hangzhou Gangjin Chemical Co., Ltd. is located in the beautiful city-Hangzhou. It was established in 1996. We are one of the leading suppliers of chemicals in China, specializing in developing and making bentonite products and fine chemicals and Paper-Making Chemicals,owing production base. Our main business range: Bentonite products Intermediates Pharmacceuticals Agro Chemicals Dyestuffs Pigments Food and Feed Addtives Paper-Making Chemicals