Inyungu y'ibicuruzwa:

Muri sisitemu ya PVC, ubucucike buke ibishashara bya polyisile irashobora guhindurwa plastike mbere yigihe, hanyuma torque ikagabanuka.iyiibishasharaifite amavuta meza yo hanze no hanze.Irashobora guteza imbere ikwirakwizwa ryamabara, igaha ibicuruzwa neza kandi ikanoza umusaruro.

Gusaba:

Yakoresheje ibara ryibanze, ibicuruzwa bya PVC, Wax emulsion (emulisifike), ibikoresho byahinduwe.