There are three levels of anti-theft door lock cores, a […]
There are three levels of anti-theft door lock cores, as follows:
The anti-theft door lock core level A lock core, the opening time of the technology is within 1 minute.
Anti-theft door lock core level B lock core, with technical opening time within 5 minutes.cylinder for door lock
The anti-theft door lock core level exceeds the B-level lock core, which cannot be opened by technology or the opening time of the source technology exceeds 270 minutes. Some people call it C-level lock cylinder, which means that the security exceeds the level B.
A-level lock cylinder
A-level lock cylinder is an old-fashioned lock cylinder. The key 100 is a cross flattened or crescent-shaped key with a convex keyway. There is a row of concave keyways on one or both sides. This type of key thief can use tin foil in a few seconds It can be opened within a short period of time. If your family still uses this kind of key, change it quickly. The A-level lock cylinder can no longer prevent the thief.
Class B lock core
B-level lock core keys are flat or crescent-shaped. B-level lock keys are more complicated than A-level keys. The keyway is single-sided or double-sided with two rows of concave or cylindrical multi-point concave keyholes.
Super B-level lock cylinder
Super B-level lock core keys are flat, the keyway is single-sided or double-sided with two rows of concave and S-shaped, or internal and external double-snake type internal milling groove structure. It is the most complicated lock core and the safest lock core. The tool can be opened for more than 270 minutes and cannot even be opened. Now the best way to use lock cylinders is to use super-B lock cylinders.