It is composed of two parts: the main body and the fastener connecting with the building, the door seal body is made of polymer material polyurethane molded, the fastener is made of metal or materials with high strength, it is corrosion resistant and anti-aging, long service life, its elastic performance is better than rubber, large energy absorption, good anti-collision effect, and can be made into door seals of various shapes and colors and can add phosphor on the surface.