For galvanized coils, the sheet steel is immersed in a molten zinc bath to make a sheet of zinc coated on its surface. Waxaa inta badan lagu soo saaraa geeddi-socod isdaba-joog ah, taas oo ah, saxanadda birta duuban ayaa si joogto ah loogu dhejiyaa haanta dahaadhka ah ee zinc la dhalaalay si loo sameeyo saxan bir ah oo galvanized ah; saxan bir ah oo galvanized ah. Noocan saxan birta ah waxaa sidoo kale lagu soo saaray habka qulqulka kulul, laakiin isla markiiba ka dib marka laga baxo taangiga, waxaa lagu kululeeyaa ilaa 500 ℃ si loo sameeyo dahaarka aluminium ee zinc iyo birta.