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There are several kinds of lock cylinders for anti-theft doors, which determine whether the inside and outside can be used and which direction to use. You should want to change the lock cylinder and doorknob cover.
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This is done by replacing the door lock or replacing it with a door with a self-locking mechanism.
The outer lock is locked with a key, and the inside must also be opened with a key!
Of course, you can, replace the outer handle with a dead handle, that is, it can't be turned, you can only use the key to open, and the inside handle can be rotated to open and close the door normally.
1. It is better to ask this question directly to the anti-theft door manufacturer or seller. 2. It is obvious that there is a problem with this door lock. The function of the lock is not to lock the owner in the house. >>>More