C9 petroleum resin,C5 Hydrocarbon Resin,Petroleum Resin C9,Hydrocarbon Resin C9,Aromatic Hydrocarbon Resin,Aromatic Resin. We have C5 petroleum resin ,C9 petroleum resin and C5&C9 petroleum resin in stock. 1,Application fields of C9 petroleum resin: a)Rubber production:It’s used as the viscosity in rubber processing with the role of softenting,strenthening and increasing the viscosity so as to ...