The PET coated metal tile is based on hot-dip galvanized or galvanized steel sheet. After special chemical treatment on the surface, it is covered with a weather-resistant film layer and a PET-OE engineering film layer in turn, so that each layer is more firmly bonded. Even in the cold zone of low temperature, it is not easy to peel off and delaminate, and the PET-OE nano-film on the surface effectively protects the metal substrate from external erosion. Hai Nai PET coated metal tile has remarkable weather resistance effect due to its high rate of blocking ultraviolet rays. At the same time, it is soundproof, fireproof and anti-corrosion. Its structure is simple, thin and light in weight, easy to transport, disassemble and assemble, and has a long service life. , to achieve the unity of energy saving and environmental protection.