Gariiradda dahaarka midabku waa wax soo saarka xaashida galvanized kulul, aluminium kulul oo saxan zinc ah, xaashi electrogalvanized, iwm. ka dibna la dubay oo la daaweeyay.Sababtoo ah waxaa lagu dahaadhay noocyo kala duwan oo midabo kala duwan oo ah saxan gariiradda birta midabka rinjiga organic magacaabay, loo yaqaan gariiradda dahaarka midabka.Isticmaalka xariijimaha birta ah ee kulul ee kuleylka leh sida qalabka aasaasiga ah ee midabka birta midabka leh marka lagu daro ilaalinta lakabka zinc, daahan organic on lakabka zinc ayaa door ka ciyaara daboolida iyo ilaalinta, ka hortagga xariijimaha birta miridhku, nolosha adeeggu way ka dheer tahay galvanized. strip, qiyaastii 1.5 jeer.Gariiradda dahaarka ah ee midabka leh ayaa leh miisaan fudud, muuqaal qurux badan iyo iska caabin daxalka wanaagsan, waxaana si toos ah loo farsamayn karaa