Mabhizinesi ekugadzira emudzimba makuru e calcium carbide PVC anosimudzira zvine simba hurongwa hwekusimudzira hupfumi hwedenderedzwa, kuwedzera nekusimbisa indasitiri yeindasitiri ine calcium carbide PVC semusimboti, uye kuyedza kuvaka maindasitiri makuru ekubatanidza "marasha-magetsi-munyu". yezvigadzirwa zvePVC indasitiri. Domestic coal-to-olefins, methanol-to-olefins, ethane-to-ethylene uye mamwe maitiro emazuva ano akaita kuti kupa kwe ethylene kuwanda.
