Adopt German continuous production line, one-time continuous foam molding of fluorine-free polyurethane. The inner and outer plates are made of 0.5mm thick Baosteel galvanized color steel plate, the surface is treated with two layers of electrostatic polyester baking paint, and the thickness of the baking paint is not less than 28 microns. It can resist the sun, rain, and ultraviolet rays for many years, and can guarantee that it will not fade for more than 15 years.

The board has excellent fire resistance and is used for horizontal installation of external walls. The board seam can be adjusted. With the four-sided tongue and groove process, it can present the effect of aluminum board curtain wall.