0.50mm DX51D Z120 PE Pre-painted Steel Sheet RAL9002 for Roofing and Wall Panel Applications 1.Product Overview 0.50mm DX51D Z120 PE Pre-painted Steel Sheet is a color-coated galvanized steel product designed for roofing components, wall panels, ceiling systems, equipment housings, building accessories, and general sheet metal fabrication. The product uses DX51D galvanized steel as the substrate with a Z120 zinc coating. A polyester paint system is applied over the galvanized