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Anonymous users2024-01-24The anti-theft door plate is generally cold-rolled plate, or zinc alloy, or galvanized sheet, lined with honeycomb paper, or tin foil, ordered stainless steel, hinges have bright hinges, dark hinges, or bright hinges, dark hinges, and handles, and the basic materials are complete.
The meaning of each manufacturer's code is the same, just like the star and moon god's B501XT-A8 >>>More
1 All of them are a combination of lenses.
Convex and concave lenses are used together. >>>More
The door mirror is a cat's eye, and it is called differently in different places.
Anti-theft door refers to the national A, B, C and D four levels of security doors, the D-level plate is the thinnest, and the plate below the D-level is just called the entrance door, the entrance door because it does not reach the minimum D-level plate stipulated by the state, so the entrance door can not be called the anti-theft door.
The full name of the anti-theft door is the anti-theft security door, and the latest national standard "General Technical Conditions for Anti-theft Security Door" divides the anti-theft level of the anti-theft door into: A, B, C, D four levels. The surface material of grade D is thick, the number of locking points is 6 degrees, the anti-vandal opening time is 6min, and the door frame is represented by the mother and son D, and the door frame should be selected mm and mm according to the level of anti-theft safety B, C and D respectively. >>>More