Umbhobho wocingo wePVC ukwabizwa ngokuba ityhubhu yokuphucula intsimbi yePVC.Umbhobho wayo isakhiwo ezintathu umaleko, umaleko wangaphakathi nangaphandle PVC iplastiki ethambileyo, kwaye umaleko ophakathi PVC ngocingo ithumbu yintsimbi isakhiwo eyomeleziweyo, okanye umnatha ucingo okanye intsimbi spiral, ngoko ke imibhobho ezininzi zenziwe.Igama: ityhubhu yocingo yePVC, ityhubhu yokuphucula iingcingo zePVC, ityhubhu yokwandisa ucingo lwePVC, umnatha wocingo wePVC ophuculweyo, umnatha wePVC wocingo oluthambileyo.Umbhobho kunye nezinye.Enyanisweni, ukunyuka kwentsimbi yensimbi ngaphakathi kwe-hose ye-PVC kuya kubangela utshintsho oluthile kumandla, ukuchasana kunye nomgangatho wepayipi ye-PVC, njengokuguqula okanye ukuqinisa imibhobho ye-PVC.