• Foom la sameeyay oo darajada daawada PVC laga keenay. • Indho dhinac oo si fiican u dhammaatay iyo dhamaadka fog ee xidhan ee biya-baxa waxtarka leh iyadoo dhaawac yar ka soo gaadhay xuubka xabka. Midab-ku xidhaha summada leh si loo aqoonsado cabbirro kala duwan.