... friendly, and economicical5. Sturdy and durable: The base of colorful stone-coated metal roofing is galvalume, ... EN102515DX51D which is the best in China. (2). The weight of Aluminium and Zinc of tiles per sq ... weathered timbr, grey, sapphire, etc. (5). The thickness of the tile is 0.4 mm or other types, ... economical. (6). The surface of the tile covered by acrylic which can make the tiles dust-proof and ...