Iintambo zeFayibha zeglasi eziQokiweyo zePA/PP/PBT
Iintambo zeglasi ezinqunqiweyo ze-PA / PP / PBT ziyaziwa ngokuthembeka kwe-strand, ukuhamba okuphezulu kunye nepropathi yokucubungula, ukuhambisa ipropathi egqwesileyo yomatshini kunye nomgangatho ophezulu ophezulu kwiimveliso zayo ezigqityiweyo.