-
Generally, it is not allowed.
-
This special industry needs to be registered and licensed by the Public Security Bureau.
1. Unscrew down the two screws on and below the pull handle panel; >>>More
It's quite simple to change the lock cylinder of the anti-theft door, just a diagram.
The lock cylinder is not much money, when to hundreds of them, if you ask the lock company to manually ask for more than 100 it, it is better to sell it to the lock cylinder yourself.
How much does it cost to change the lock cylinder for the security door. >>>More
There are thousands of lock cylinders for anti-theft doors, the price is not the same, if you do not require quality, do not consider safety, you can install plastic cores, lead cores, of course, the price is low, dozens of yuan can be installed. The relative quality of copper cores is guaranteed, and the price ranges from tens of yuan to hundreds of yuan, and thousands of yuan may be available.