Yenziwe kwi-polyethylene-coated polypropylene ( PP + PE ) izinto eziphathekayo, ezinika ukhuseleko oluphezulu lwamanzi;
Ukusetyenziswa kwiindawo apho kunokwenzeka ukuba kwenzeke kwakhona ukutshizwa , ukutshizwa okanye ukufunxwa lulwelo lomzimba kunye nabathwali be patho gen .Izibophelelo ezinqeni nasentanyeni ziqinisekisa ukuba iigawuni zihlala zikhuselekile.