... . Granular shape, cheap price 1,This petroleum resin is applicable to acyclic petroleum resin of rubber mixing which don't contain arene ... ,etc.as well as reinforcing resin.2.In rubber mixing, it is applicable to adhesive,reinforcing agent,filler for its improvement in ... tensile strength,tensile stretch,nti-avulsion and the ideal auxiliary agent for high-grade soles,rubber products,inner tube,strap and ...