Civil air defense door The lightweight civil air defense door is made of polymer thermosetting fiber-reinforced sheet mold composite material and is produced using the molding process. The built-in embedded inserts are made through high temperature and high pressure. Its strength is greatly increased and it has certain resistance to acid, alkali and other chemicals. Lightweight civil air defense doors will not rust or rot in the humid environment of the basement all year round and have a service life of more than 10 years. The door and door frame are sealed with sealing strips and are reliable. Therefore, lightweight civil air defense doors are an excellent alternative to traditional steel structure civil air defense doors.
The lightweight civil air defense door lock adopts a four-link driven slide bolt lock, which is light in weight, simple in structure and easy to operate. Compared with traditional reinforced concrete steel structure protection equipment, it is lighter in weight and easier to install. In addition, the surface of the door leaf adopts a low-temperature baking process to avoid subsequent maintenance.
Lightweight civil air defense doors also have many advantages such as high productivity, good insulation, sound insulation, flame retardancy, moisture resistance, and beautiful appearance.
Civil air defense door Shandong protective closed door manufacturer Shandong civil air defense door