The sealing strip product comes with a warranty certificate for vulcanized EPDM sealing strips. The sealing strip made of this material has excellent aging resistance and is suitable for sealing doors and windows. However, its vulcanization molding requires microwave vulcanization line, which is only produced by a few domestic enterprises. Moreover, this type of product has a large proportion, low window exit rate, cannot be reused, and is not conducive to environmental protection. Therefore, the promotion of this type of product is difficult and the market is rare. The overall production level of sealing strip production enterprises for building doors and windows in our city is relatively backward.