PPGI & PPGL (bir galvanized bir ah iyo bir galvalume pre rinji) sidoo kale loo yaqaan bir hore loo dahaadhay ama gariiradda birta midabka dahaarka leh, Waa wax soo saarka ka samaysan xaashi bir galvanized kulul-muquufin, xaashi bir galvalume kulul-maquufin, xaashi bir electro galvanized, iwm. Ka dib daaweynta dusha sare, hal ama dhowr lakab oo daahan organic ah ayaa lagu dabaqayaa dusha sare, ka dibna la dubay oo la adkeeyey.Gariiradda birta ah ee dahaarka leh ee midabkeedu waa khafiif, muuqaal ahaan, qurux badan, waxayna leedahay wax-qabad wanaagsan oo ka-hortagga daxalka, si toos ahna waa loo farsamayn karaa.Midabka guud ahaan wuxuu u qaybsan yahay cawl, buluug badda, leben cas, iwm.