The main structure of the aluminum alloy electric expansion door is similar to that of the stainless steel. It is also made by using the principle of parallelogram movement, using the standard aluminum alloy profiles directly pressed by the mold, and then connected by the galvanized pipe and cross connecting rod. Compared with the traditional stainless steel electric door, the material is better, the shape is more beautiful and more corrosion-resistant. Aluminum alloy expansion door. The main frame profile of the door body is made of plastic parts by a unique process. The screws at the connection position are fixed in a concealed design to improve the appearance of the door body. The connection between the profile and the plastic parts is made of punching, pressing, drilling and other processes to make the structure of the door body firm without any welding points. The latest cross connection design: the cross pipe is made by special process and equipped with super PA wear-resistant sleeve. The close combination with the round pipe not only makes the door truss structure stronger, but also ensures smooth operation.
The characteristics of the expansion door beautify the environment, improve the appearance of the enterprise and enhance the image of the enterprise; help to create a civilized enterprise, civilized factory and civilized city atmosphere; improve the safety, even if there is damage or crossing in the late night, immediately call the police. The expansion door is mainly used in living quarters, government schools, enterprises and institutions, various factories, etc.