Just bought a second-hand house, afraid of someone in my home above the key idea, trouble you tell me a few keys to the security door? Hope to indicate the difference between AB and ABC two locks
It is best to lock the lock. The Even if someone else gave you the whole key, if someone else with a you do not know.
Good security door should have 8 of which 2 is to the decoration with the other six used that 2 is not so good
Anti-theft door anti-theft lock AB lock or ABC lock two kinds of usage can see the instructions on the packaging, you can also ask the installation of the master. The new anti-theft lock package is intact, the packaging is B lock or BC lock, the normal is 6. Outside is the A lock, for the construction staff to use. There is no packaging of the anti-theft lock, the key is generally 6, it is recommended to the official lock, lock the place to buy or install.
