Aluminum alloy door frame has the characteristics of high strength, corrosion resistance, and not easy to deformation, and the appearance can be presented with various colors and textures through different surface treatment processes (such as electrophoresis, spraying, etc.), matching with different decoration styles. The plastic steel door frame has good thermal insulation performance, which can effectively reduce the transfer of indoor and outdoor heat.
Sealing rubber strip is an important material for the system door to achieve good sealing. It is usually made of rubber or silicone material, which has good elasticity and weather resistance. The sealing rubber strip is installed between the door frame and the door panel. When the door is closed, the rubber strip tightly fits together to prevent dust, rain, and air from entering the room through the gaps. At the same time, it also plays an auxiliary role in sound insulation and heat insulation, reducing the transmission of sound and heat.