Ebiwandiiko ebiragiddwa wansi byonna bikwata ku buveera bwa pvc ebikozesebwa mu mpapula , okuyita mu biwandiiko bino ebikwatagana, osobola okufuna amawulire agakwatagana, ebiwandiiko ebikozesebwa, oba emitendera egy'omulembe ku buveera bwa pvc ebikozesebwa mu mpapula . Tusuubira nti amawulire gano gajja kukuwa obuyambi bwe weetaaga. Era singa ebiwandiiko bino eby'obuveera bwa pvc ebikozesebwa mu mpapula tebisobola kugonjoola byetaago byo, osobola okututuukirira okufuna amawulire agakwatagana.