... dip galvanized in corrosion resistance. It could be ideally applicable for mobile muffler, vent pipe, foodstuff dryer, heater etc. ... adhesion with coating layer and paint, so ones for sign board and general use may be painted without weathering or ... is much lighter in the same capacity, which saves enormously for expensive coated steel.APPLICATION:ARCHITECTURE: ROOFING, EXTERNAL SIDING, GARAGE ...