Ibhodi ekhazimlayo yePVC yeFanitshala yenziwa yinkqubo ye-Co-extrusion, eyinguqulelo ephuculweyo yenkqubo yesiqhelo yokuphuma.I-co-extruded ibhodi ye-foam yenza iphepha lidibaniswe nemigangatho emithathu: iileya ezimbini zangaphandle ze-PVC eqinile, kunye nomgangatho ophakathi yi-PVC ye-foam.