Kune maindasitiri akawanda, kushandiswa kwehydrocarbon resins rave chikamu chakakosha chekushanda kwavo. Izvi zvinyorwa zvevakawanda zvine huwandu hwakawanda hwekushandisa zvinosanganisira mainominari, majasi, inks uye mafudzi. Semunhu anotungamira mugadziri we hydrocarbon resins, tangshan chikepe ...
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