Ukusebenziseka nokusebenza kokuvalwa kwezikhwama zezitshaIsikhwama sesitsha sikhiqizwa kusetshenziswa i-polyolefin resin, edlula enqubeni yokudweba nokuluka, ilandelwe ukugqoka nokusika kube izinto ezijikelezayo noma ezifana namashidi ezosayizi ezahlukahlukene. Lezi zinto bese ziyathungwa zibe izinto ezijikelezayo noma ezinesikwele.
Kwadalwa ngo 01.17