Corrugated plate is also called pressure plate, the use of color coated steel plate, galvanized plate and other metal plate by rolling cold bending into a variety of wave shape of the pressure plate, it is suitable for industrial and civil buildings, warehouses, special buildings, long-span steel structure of the roof, wall and interior and exterior wall decoration. With light weight, high strength, rich color, convenient and quick construction, seismic, fire, rain, long life, maintenance-free and other characteristics, has been widely used.