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Anonymous users2024-01-24AB locks? Does it refer to AB keys? A key is 2 decoration keys, B key is a sealed key bag house decoration for their own family, with B key after the A key can not be used normally to be considered successful.
It should be that there is a problem with the lock cylinder, and it is best to change the lock cylinder.
The AC key is generally red, the B key is blue, there is a small gap at the front end of the C key, the A key can be used before and after the failure of the insurance function, the B key is provided to the installation workers to use, after the installation is accepted, as long as the C key is inserted into the lock cylinder and rotates 360 degrees, the B key will automatically fail, and the AC key can be used as usual. AB is actually the key used by the homeowner, after the house is renovated, the general AB key is in the package, the A key is without a plastic handle, the C key has two, and the B key has 3 to 4.
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