Anti-theft lock features and purchase considerations

Security door purchase considerations

First, the lock body material This involves a lot of expertise and technology of various manufacturers, the mainland is generally iron, steel, stainless steel, zinc alloy, due to process, cost constraints, lock bar hardness is not enough, often very easy to be pliers, Hydraulic pliers cut open.

Second, the lock core generally buy locks only look at the shape, I think a lot is good. However, no matter which kind of domestic locks are purchased, the lock cylinders are generally copper, and the characteristics of copper are soft. With electric drills and concentrated acids, you can easily destroy the copper cylinders. The types of lock cylinders are also different. At present, the commonly used lock cylinders are European-style lock cylinders. In addition, there are American thread lock cylinders and fire lock cylinders. The latter two are relatively safe and the American lock cylinders are used in high grades. Door lock, good quality, high safety, fire lock cylinder used in fire door locks, able to withstand high temperature of 975 degrees for 90 minutes, is a national special mandatory lock cylinder.

Third, the keys, there are many lock keys, cross, round mouth, Crescent, a variety, many keys are made of copper or aluminum alloy, it is easy to be copied, the current better material is steel, there are new The electronic key is safer.

There are many types of anti-theft locks, but we generally use B-type anti-theft locks, and we also need to pay attention to the brand when we buy anti-theft locks, because the brand can better guarantee quality and safety.