... -corrosion property and a longer lifespan than that of galvanized steel sheets.2. The base metals for Painted Steel ... Coil consist of cold rolled, HDG electro-galvanized and hot-dip alu-zinc coated steel. The finish ... (Outside) workshop, agricultural warehouse, residential precast unit, corrugated roof, wall, rainwater drainage pipe, terrace, retailer booth, roller shutter door(Inside ...