Iiresini zehydrocarbon, ezaziwa ngokuba ziiresini zepetroleum, zizinto eziyimfuneko kakhulu kumashishini ahlukeneyo ngenxa yeempawu zazo ezizodwa kunye noluhlu olubanzi lwezicelo. Ezi resini zokwenziwa, ezenziwe ngepolymer ukusuka kwiinxalenye zepetroleum, zizinto ezibalulekileyo kwiimveliso ezifana nezincamathelisi, iingubo, ii-inki, kunye ...
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