Makambani makuru ekugadzira calcium carbide PVC emuno anosimudzira nesimba hurongwa hwekuvandudza hupfumi hwakatenderera, kuwedzera nekusimbisa cheni yemaindasitiri necalcium carbide PVC senzvimbo huru, uye vanoedza kuvaka boka guru remaindasitiri rinobatanidza "marasha-magetsi-munyu". Parizvino, masosi ezvigadzirwa zvevinyl vinyl muChina ari kukura nenzira dzakasiyana-siyana, izvo zvakavhurawo nzira itsva yekutenga zvinhu zvekugadzira indasitiri yePVC. Marasha emuno-ku-olefins, methanol-ku-olefins, ethane-ku-ethylene nedzimwe nzira dzemazuva ano dzakaita kuti kuwanikwa kwe ethylene kuwande.
