Master Huang tells you how to distinguish the

Professional lock core hardware products, more than ten years of industry technology, master Huang unlock now with many years of experience and technology to explain how to distinguish the quality of anti-theft lock. The quality of anti-theft lock mainly depends on the following points: first, lock material: this involves a lot of professional knowledge and manufacturer's technology. Generally, iron steel stainless steel zinc alloy is produced in mainland China. Due to the limit of process cost, the hardness of lock rod is not enough, and it is easy to be cut by the hydraulic tong of the forceps. Second lock cylinder: ordinary people only look at the shape of the lock, and think the big one must be good. As long as you pay attention to it, no matter which kind of lock you buy, the lock cylinder is usually made of copper. The copper is soft. If you use electric drill to concentrate acid, you can easily destroy the copper lock cylinder. There are also differences in the types of lock cylinder. At present, the commonly used lock cylinder is European lock cylinder. In addition, there are American thread lock cylinder fire-proof lock cylinder. The latter two are relatively safe. The American lock cylinder is used in high-grade door locks, with good quality and high safety. The fire-proof lock cylinder is used in fire-proof door locks, which can withstand the high temperature of 975 degrees for 90 minutes. It is a special lock cylinder enforced by the state. Suzhou unlock three keys: there are many keys, cross, round mouth, crescent, a large number of colors. Many keys are made of copper or aluminum iron alloy, which is easy to be copied. At present, the better materials are steel, and the new electronic key, which has high security.