Intambo yangaphakathi yethusi le-PVC elifakwe i-PVC eliboshwe livikelwe ngentambo evikelwe ukusonga evikelekile libekwe egumbini elikhulu lenkundla kazibuthe, kukhebula, epayipini, lingcwatshwe ngqo, lilenga, futhi lingamelana nezikhathi ezithile zempikiswano enkulu.
