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Anonymous users2024-01-24When the indoor window is opened, the air circulation is accelerated, which breaks the balance of the indoor air and produces positive or negative air pressure. Positive air pressure blows the door open, and negative air pressure blows the open door shut.
Anti-theft door, anti-noisy wheel, anti-thief, anti-promotion and anti-theft, it is normal, but some users use the Panpan brand anti-theft door with one more function: both anti-thief and anti-master. Find them to repair the after-sales personnel, so that the repair of the lock on the street is not very good!
Look at the security door to see if there is water on the door frame and whether the hinge of the door is short of oil.
The security door lock is divided into two parts, inside and outside, and the key is inserted inside. Basically, there is no way to remove the key. You can try to open it with a tool from the position of the door mirror (there are professional lockpickers for specific public instruments), but this method is only applicable to the quick lock door, and the door is not locked with a key. >>>More
What is the movement of opening and closing the security door? The movement of opening and closing the security door is a circular motion.
Oh, there are too many such thieves, and the next time you install an anti-theft door, you have to buy a good anti-theft door. >>>More