Selection index of anti-theft lock

Selection index of anti-theft lock
1. Lock body material This involves a lot of professional knowledge and the technology of various manufacturers. Generally, the lock is composed of iron, steel, stainless steel, and zinc alloy. Due to the limitation of process and cost, the hardness of the lock rod is not enough, and it is often easy to be clamped. Hydraulic pliers cut open.
2. Cylinder 　 Most people only look at the shape of a lock when buying a lock. If it is large, it will be better. The lock cylinder is generally made of copper, and the characteristic of copper is relatively soft. With an electric drill and concentrated acid, the copper lock cylinder can be easily damaged. There are also differences in the types of lock cylinders. The more commonly used lock cylinders are European lock cylinders. In addition, there are American threaded lock cylinders and fire lock cylinders. The latter two are relatively safe.
3. Keys and locks. There are many keys, cross, round mouth, crescent, and many kinds of keys. Many of the keys are made of copper or aluminum-iron alloy, which can be easily copied. The better materials are steel and new types. The electronic key has high security.