... -GPRO (Nanjing)Rubber Co., Synthetic SBR rubber, "YANGZI" brand JIANGSU GPRO GROUP is one of the China Top 500 Enterprises, a large ... private enterprises of China in 2008. There are three product chains as the key industry of this group: Synthetic Rubber, Titanium Dioxide ... a large scale petrochemical company focusing on the production of synthetic rubbers, mainly SBR 1502 and 1712, with total annual ...