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Anonymous users2024-01-24If the moisture is too heavy, or there is water that has not been dried before the installation of the security door, LZ can be blotted dry with a soft sponge, and then sprayed with WD40 and other rust removers.
This is caused by the fact that the human body sometimes carries static electricity, and when you open the door, you can touch the wall or the key on your body with your own hands.
Let the cultivators figure out a way!
If there is such a sound, it should be that the gap between the door leaf and the door frame of your home anti-theft door is too large, resulting in the door not being closed tightly.
Anti-theft doors and security doors are collectively referred to as anti-theft security doors in our country as the full name, its locks should be anti-theft [technical] unlocking time has a national standard level, and the thickness of the steel plate of the door frame is standard; It is divided into 4 levels: A, B, C, D. If there is no level, it is not an anti-theft security door, but an ordinary protective door.
You've already asked yourself questions!