C5/C9 Copolymerized Hydrocarbon Petroleum Resins
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C5/C9 Copolymerized Hydrocarbon Petroleum Resins ( used in adhesive,hot melt adhesive,rubbre,tyre and so on.)
C5/C9 Copolymerized Hydrocarbon Petroleum Resins ( used in adhesive,hot melt adhesive,rubbre,tyre and so on.)