How to distinguish the difference between locks by abc key of security door

So how to identify the abc key of the security door? ? A and C are generally red and B is blue, but there is a gap in the front end of C. A and B can be used to provide the installer before and after the insurance fails. After installation, as long as C is inserted into the lock cylinder and rotated 360, B will automatically fail, and A and C can be used as usual. After flipping C, open it with B to confirm that B has expired. Don't try to open it with C when the user is using it. As for the abc key of the security door, how to distinguish the actual security door is different. Bian Xiao only said a little. Then how to tell the abc key of the security door? Be sure to ask the seller clearly before using it after purchase, so as to avoid unnecessary trouble caused by mistakes.

How to distinguish abc key of security door? First of all, let's talk about the following locks:

Locks are divided into three categories: Class A (referred to as Class A locks) and Class B (referred to as Class B locks). B (abbreviation: super class B lock)

1. What is a class A anti-theft lock?

Anti-technology unlocking time shall not be less than 1 min.

Class A anti-theft lock can be opened destructively for not less than 15 minutes.

2. what is a class b anti-theft lock?

Anti-technology unlocking time is not less than 5 minutes.

Class B anti-theft lock can prevent destructive opening for at least 60 minutes.

3. what is a super b-class anti-theft lock?

Anti-technical unlocking time shall not be less than 180 minutes.

Super B-class anti-theft lock can be opened destructively for no less than 240 minutes.

At present, the lock core on the market is divided into three levels, and its safety level is A-? Class B-Super Class B is arranged from low to high, which can be used to distinguish lock cores from keys. The key of lock cylinder A has only one row of slots on each side, and the key of class B has two rows of slots on each side. Super B-slot is completely different from Class A and Class B slots. ? Super B lock core is not a slot, but a blade. The key slot is usually one or more S-shaped slots. As for the C level mentioned by someone, I have never heard of it or seen it.

How to distinguish abc keys from locks for security doors? Here are some tips about locks. It's shallow I hope every car owner has a safety lock. You can get out safely.

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