Grade A/B/C level lock core, respectively represent?

Everyone at the time of buying smart locks, often can hear the introduction of ABC lock, but many people may not know what these levels represent? Which lock level is the best? Small make up for everyone to introduce: next ▌ mainly have A level A grade lock anti-theft lock key A key word keys and cross. Internal structure is very simple, grade A lock core is limited to the change of the marbles, billiard groove less and shallow. The technical open time within 1 minute, mutual opening rate is extremely high. Billiard structure for single row marbles or cross lock. ▌ B class lock B class lock key for flat key, A double row ball groove, unlike A grade lock is key to face more than A row of winding irregular lines. Three, lock the main type of computer double row lock, double row crescent lock, double-sided Ye Piansuo core. The technical open time 5 minutes, mutual opening rate is high. Through strong torsion tools, one minute can open the lock. ▌ levels C lock C lock key for both the blade shape structure key slot, lock type for bilateral column lock core. By the Ministry of Public Security testing 800 minutes can't open, regional mutual opening rate is zero, One over one hundred billion) 。 Leaf structure into 48 leaf and bilateral column locking; If with a strong tool to open the lock, lock the internal damage, explosive lock, lead to can't open it. Above is the intelligent lock lock XinJi other introduction, promotion on the market at present the so-called super class B, class C lock lock core core is mostly businesses own definition, there is no relevant national standards in China.
lock manufacturing are all following the most compatible manufacturing regulations.
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