C9 Hydrocarbon resin SHM-299 Series yog C9 feem raws li cov khoom lag luam ntawm cov roj av tawg thiab cov thermoplastic resin ua los ntawm distillation, polymerization thiab lwm yam txheej txheem.Nws yog oligomer molecular hnyav ntawm 300-3000 thiab tsis yog polymer. xim av granule los yog flake khoom.