... .5mm width:600-1250mm Steel grade: DX51D,SS grade 33-80 SGCC etc cold rolled galvanized steel coilthickness:0.14-2 ... .5mm width:600-1250mm Steel grade: DX51D,SS grade 33 ... , corrugated roof, roller shutter door, rainwater drainage pipe, retailer boothInsideDoor, doorcase, light steel roof structure, folding screen, elevator, stairway, vent ...