Liphaephe tsa Casing tsa UPVC

Lihlahisoa tse sebeletsang litlhoko tsa bophelo bo botle ba baahi.Ho ea ka WHO, lihlahisoa tsena li lokela ho ba teng “ka linako tsohle, ka chelete e lekaneng ka mefuta e loketseng ea litekanyetso, ka boleng bo tiisitsoeng le boitsebiso bo lekaneng, le ka theko eo motho ka mong le sechaba ba ka e khonang”.