Ask a math problem about security doors

No, you'll have to change the cylinder.

You can remove the lock cylinder as follows: first remove the doorknob, and then unscrew it on the side of the lock, and the lock cylinder can be removed. Then go to the hardware store and buy the same lock cylinder and install it in the same way. >>>More

There is an electronic lock pick, you can buy one online, study hard, practice repeatedly, and you're good to go.

The main entrance should be the largest, and the door should not be the door, so as to reduce the useless door.

Let's groove the exterior wall. It's better for you to have a longer line, and let the electrician make a slot for you away from the door, bury the line in, and then outside. >>>More

Install a shatterproof induction alarm or door magnetic alarm on the glass door on the façade, when there is a thief breaking or opening, the alarm will be wirelessly networked through the phone and automatically call back the original set phone or mobile phone number to remind you in time. More advanced products also have automatic real-time recording of the environment. >>>More