Roof panels, also known as profiled steel tiles, are pressed plates of various shapes using color steel plates, flat steel plates, or aluminum-zinc steel plates that are rolled and cold-bent. Mainly suitable for industrial and civil buildings, warehouses, and special buildings. , the roofs of long-span steel structure houses are not as decorated as the interior and exterior walls. Light weight, high strength, rich colors, convenient and quick construction, earthquake resistance, fireproof, rainproof, long battery life, maintenance-free, etc.