一, Sooyaalka warshadaha Sida warshado kala duwani ugu tiirsan yihiin tuubooyinka PTFE ilaa heer sare, tirada tuubooyinka PTFE ayaa sidoo kale si aad ah u kordhay.Tuubooyinka PTFE waa shay caadi ah oo ka mid ah warshadaha wax soo saarka iyo aqoon-is-weydaarsiyada farsamada, waxayna had iyo jeer ka jireen cuntada, beeraha, kalluunka...
Akhri wax dheeraad ah