Wooden door sealing strips play a key role in wooden doors, anti-theft doors, sliding doors, and various doors and windows. The most obvious is sound insulation and shock resistance. After installing it on the door stop line, it reduces (or even disappears) the collision sound when the door (window) is closed. It protects the edge of the door leaf and prolongs the life of the door. noise. The second is sealing, damping, and isolating the indoor and outdoor air, which effectively plays a role of heat preservation and energy saving, and prevents small insects such as mosquitoes from entering the room. The slotted sealing strip is to make a groove on the door frame and install the sealing strip. This kind of slotted sealing makes the sealing strip embedded in the groove not easy to fall off, and the installation is simple.