Harvest Enterprise as de profesjonele fabrikant wolle wy jo Hydrogenated Hydrogenated Hydrocarbon Resin leverje. Algemien wurde de Petroleum Resin fjouwer soarten klassifisearre neffens de ferskillende grûnstoffen, It is C5 Petroleum Resin, C9 Petroleum Resin, Hydrogenated petroleum hars, C5 / C9 copolymerized petroleum hars.