... corrosion6,long service life7,free of maintenance8,beautiful appearance The usage of the corrugated steel roof sheet: steel house,suburban ... old structures,warehouse,steel structure house.Corrugated Steel Roofing Sheet,light weight,abundant colors,easy installation,water proof,long ... lift-span,etc.Corrugated Steel Roofing Sheet (use for Roof or wall)1,Thickness:0.18mm ...