SBR1502 / 1712 Styrene Butadiene Rubber, YPC-GPRO (Nanjing)Rubber Co., Synthetic SBR rubber, "YANGZI" brand JIANGSU GPRO GROUP is one of ... three product chains as the key industry of this group: Synthetic Rubber, Titanium Dioxide, and PU. For the Rubber Industry, ... a large scale petrochemical company focusing on the production of synthetic rubbers, mainly SBR 1502 and 1712, with total annual output ...