Iindaba zeShishini

I-PVC, okanye i-polyvinyl chloride, yi-polymer ye-thermoplastic esetyenziswa kakhulu eyaziwa ngokuguquguquka kwayo kunye nokuqina kwayo. Kwiminyaka yakutshanje, ngenxa yogxininiso olukhulayo kukhuseleko lomlilo kumashishini ahlukeneyo, imfuno yezinto ze-PVC ezithintela umlilo iqhubekile nokukhula. I-PVC ethintela umlilo yi-t...