Door Seal (Slot Type) in the wooden doors, security doors, sliding doors, all kinds of aluminum doors and windows and other windows and doors play a key role. The most obvious is the shock, block the door after it is installed on line to reduce (or even disappearance of) the closed (window), the collision sound, the edge of the door from a protective effect, and extend the life of the door, reducing the noise. Secondly, sealing, damping, isolation indoor and outdoor air, effectively acts as a thermal insulation, energy-saving role, but also drill down to prevent mosquitoes and other small insects indoors. Slot-type seal in the door frame out of a groove, the seal installation on this slot seal to seal off an embedded slot is not easy, easy to install.