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Anonymous users2024-01-24The main thing is the brand of the door, as well as the level of the anti-theft door.
On the hinge (hinge) side of the door, there is a grade stamp.
It's hard to buy, so you might as well go to the market and buy a doorbell board so that you can do it yourself.
You can electroplate the paint and choose your favorite color.
1. Distinguish according to the door type.
According to the different structures, the anti-theft security door can be divided into three types of doors: casement anti-theft security door, fence anti-theft security door and fence folding door. >>>More
There should be no insurance inside the security door, (to prevent students from keeping the door inside) there should be a piece of glass on the door with a size of 200*600 (to prevent people from touching people when opening the door) and should be opened inward (to prevent people from running into the corridor when opening the door). >>>More