What's the difference between cross lock, crescent lock and AB lock security door?

Glad to answer your question! Door locks on the market now are generally divided into ABC three grades. A is the lowest and C is the highest. At present, Class A locks are being phased out in the market. Class B locks are used more now. Class C locks have the highest safety factor, but the highest price. As for what kind of lock to choose, you can choose it according to your actual strength! I hope my answer can help you! First, I think the key is to lock the door. If the mechanical lock core is replaced, the double-sided knife and multi-track knife lock, which are popular in China, are safer. At present, the best brand in China is. Jin Dian Atomic, Ma Yue, Mabel, Jixin and other brands have first-class safety performance in China.

If it is a smart lock, domestic first-line brands can do it at present, and they all have biological characteristics, especially the fingerprint characteristics are too few (with keys). Just choose a good service and install it. Domestic first-and second-tier brands are all. Less than 5% of C-class locks in Kaidishi, Deshiman, Asia-Pacific Tianneng, Yale, Samsung, Lu Kai, Xiaomi, 360, Heilong, Shimao, Hollis, Unisys, Zhongheng and Goldfinger are of this type, and the structure is the most complicated, which requires a lot of technology to splice. Moreover, many lock cores have their own unique patents, and the highest level required by national standards is much higher than this, which has a strong ability to prevent technical opening and violent opening.

This is an anti-theft lock. Among them, bead-in-bead technology is recognized as the best anti-theft technology of lock core in the world. The anti-theft technology of pearls and leaves in pearls can actually reach 270 minutes. Suggestions. High safety factor, can continue to use. Class c 1 (three-sided billiards with special-shaped grooves) is familiar to everyone. Everyone uses it. There are many kinds of locks in the world, but ordinary people simply don't understand the truth! We can only look at the price, the appearance and the surface, but we don't know how to choose or what to choose. Ordinary rural families and farmers don't know much about it, so we will only choose the low price, because in our eyes, it is actually the same.

But now everything is professional and thieves are no exception! What kind of lock should we choose? Then what kind of lock should we choose to be safe? The lock can only protect you, and the gentleman can't guard against the villain. If someone wants to steal from you, there are many ways to pry open the lock, but then again, a good lock can buy us more time. For example, it usually takes 20 seconds to pry open a thief's lock, and it may take 2 hours for a better thief to pry it open, which has won us a lot of time. If one of your neighbors comes back, or you come back, won't you find the thief? Therefore, locks are only anti-theft and thief prevention, and cannot be completely avoided. Therefore, I suggest to equip myself with a good anti-theft lock within the scope of my economic conditions. Doors equipped with anti-theft locks can resist abnormal opening under certain conditions for a certain period of time, and have certain safety protection performance, reaching the corresponding safety level.