Door and window sealing strips contain special sound-absorbing cotton, which can effectively absorb the noise leaked from the movable window into the room. It has more sound insulation performance than ordinary sealing tape, which can improve the sound insulation performance of doors and windows by 35%. This new type of sealing strip is durable, non-shrinking, invariant and strong in elasticity. It can maintain the original shape after many years, ensuring the sealing performance of the product, and the service life can reach 20 years. And does not react with any paint, detergent, customers do not need to worry about the integrity and aesthetics of doors and windows being damaged.