Can the cylinder of an anti theft door lock be universal?

It is usually believed that there are three types of lock cylinders: A, B, and C, but this is not the case. According to the provisions of GA T73-1994 "Mechanical Anti-theft Lock": Anti-theft locks are divided into three levels: A, B, and super B. The country has not yet formulated a standard, and the C-level lock on the market is actually a super B-level blade lock, and the C-level lock should be a concept set by the enterprise. >>>More

1. What is a Class B anti-theft lock?

Understand that it is not so easy for B-class locks. In other words, the more complex the cylinder, the longer it will take to unlock. Most of the home security doors on the market are Class B locks. >>>More

The so-called BC lock cylinder is just a change of soup and not a change of medicine, the exposed locks are easy to be pried or opened by technology, it is recommended to install M C K invisible remote control lock directly behind the door, no exposed no lock hole, one of the anti-theft weapons, and not afraid of failure, dual system humane design for you to protect your home.

Hello, the current lock cylinder level on the market is divided into three levels, its security level according to the unlocking time from low to high in order to arrange for a level - B - super B level, from the key to initially distinguish which level the lock cylinder is, a level of lock cylinder key each side of only a row of tooth grooves, B level two sides of two rows of tooth grooves, super B level of tooth grooves with A level and B level has a qualitative improvement, super B level lock cylinder in addition to the bullet blade, this is a new anti-theft technology. The key tooth grooves are usually one or more serpentine grooves. >>>More

If it is a house with north-south penetration, there is no need for the security door to be ventilated, otherwise, it is still necessary to install a ventilated security door.