The sealing strip is made of PE outer coating, high resilience PU foam as the main raw material, and contains a PP skeleton. Therefore, the sealing strip has a compression variation of less than 10%, ensuring that it can be applied to doors and windows The tightness of the strip, the PE outer covering film increases the service life of the product to a large extent, not only the color is rich and beautiful, but also more choices, the PP skeleton in this material also has a very good fixing effect on the product After successful installation, it can effectively prevent product shrinkage and effectively block noise interference.