What are the security levels of anti-theft door lock cores?

When we usually buy a lock, we must not look at the design of the key handle, the most critical thing is the design of the key itself!

Class A lock

At present, the A-class anti-theft lock keys on the market mainly have a word key and a cross key. The internal structure of the A-level lock cylinder is very simple, limited to the change of the marble, and the marble groove is few and shallow. Within 1 minute of anti-technical opening time, the mutual opening rate is extremely high. The marble structure is a single row of marbles or a cross lock.

Class B lock

The B-level lock key is a flat key with double rows of billiard slots. The difference from the A-level lock is that there is an additional row of curved lines on the key surface. There are three main types of lock cylinders, computer double-row lock cylinders, double-row crescent lock cylinders, and double-sided blade lock cylinders. Within 5 minutes of anti-technical opening time, the mutual opening rate is high. With a strong twisting tool, the lock cylinder can be opened within 1 minute.

Lock God Super C lock

The shape of the key is a front and back blade structure key slot, and the type of the lock core is a double-column lock core; after 800 minutes of detection by the Ministry of Public Security, it cannot be opened technically, and the regional mutual opening rate is zero (one hundred billion). The blade structure is 48 blades plus a double-column column lock; if the lock core is opened with a strong twisting tool, the inside of the lock core is destroyed, and the self-detonation locks, causing it to fail to open.

Teach you how to pick a safe lock:

Buy a lock and see the "teeth" of the key. The more teeth, the deeper the teeth, the more complicated the arrangement, the more difficult to open, and the better the anti-theft performance.