... 600-1250mm 3.surface galvanized Galvanized cold rolled steel coil DX51D, SGCC :Base material: DX51D+Z ... coating2/2Note: Protect film available2) APPLICATION OF OUR PREPAINTED STEEL ConstructionOutsideWorkshop, agricultural warehouse, residential precast unit, corrugated ... , rainwater drainage pipe, retailer boothInsideDoor, doorcase, light steel roof structure, folding screen, elevator, stairway, vent ...