Longyang anti theft door to the door in the door can open 180 degrees 9 cm thick price

First of all, you should check whether the security door has a certificate of conformity tested by a statutory testing agency, and there is a security technology protection product license issued by the security technology prevention department of the provincial public security department where the manufacturer is located. >>>More

The anti-theft level of the anti-theft door is divided into four grades: A, B, C, D according to the length of man-made damage time, the thickness of the door frame of the anti-theft door, the lock, the hinge, etc. >>>More

The security door is anti-theft, and it generally requires 15 minutes to not open. >>>More

There are three differences between <> fire doors and security doors: different functions, different materials, and different security. 1. The function is not the same >>>More

The ventilation security door has a special design, and the ventilation window is generally equipped with 100 shutters. The shutters are effective in blocking the line of sight and keeping the airflow open, but they have a limited effect on sound. The use of ground glass can effectively block the view, but it will affect ventilation and is not recommended.