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Anonymous users2024-01-23These brands are fine, except for Xinduo, which I haven't heard of.
When buying, the key is to look at the level of the security door.
Because the level of the security door represents the security door, the material, the thickness of the steel plate, etc.
The level of the security door is divided into: A, B, C, D, etc. Generally speaking, it is almost the same for home use to choose grade C.
It is recommended to choose a C-level anti-theft lock cylinder.
The ventilation door must be installed outside the current door, you have to see if there is space on the wall of the door you are installing now, if your current door is open outward, it is very troublesome, the ventilation door should be opened outward, and the inner door should be opened inward.
The price of Longyang anti-theft door Longyun.
You mean change the lock cylinder. I just changed it a while ago, and it's better, and the anti-theft performance is better than 100. There are also cheap ones. I didn't use the installation master, I installed it myself. It's simple. Door-to-door payment should be added separately.
It depends on how big your door is. Half of the 1 meter or so should have an anti-theft window. Look beautiful.
Hello, I'm a designer, I can help you do it. But it's not free. If you think you can, just contact me. The price is easy to negotiate, just to make some extra money.