The key, the lock, the learning security door should use the lock cylinder?

AB key lock, it has AB two keys. It is a type of lock made up of bullets and other structures (the depth of the pit is different, the same as the difference in the depth of the flat key). There are also called "咔吧锁" and "computer locks, also called "bias lock" and "Bai Li lock". The role of the AB key is that when people install the lock, the owner can hand over the A key to the house decorator. For them to enter and exit the house door to unlock, so also called the A key as the "renovation key." When the decoration is completed, the owner does not need the decoration personnel to enter the room, the owner uses the B key to insert the lock hole and rotate the lock cylinder after a turn (circle) The A key loses the function of unlocking, so the B key is also called the “homeowner key.” The advantage of the AB key lock is that it can meet the needs of people to decorate the house, so as to avoid losing the door open key when the decoration is busy, or have a heart Poor people copying the door opening keys, etc., may avoid the insecurities caused by the owner after the decoration, and also avoid the trouble and cost brought by the lock after the decoration, so they are welcomed by people.

The so-called ABC lock cylinder or what super B-class lock core is just a gimmick. The anti-theft performance of the lock is divided into two grades according to national standards. The main performance: such as anti-destructive performance, the A-level requirement is not less than 15 minutes, grade B. The requirement is not less than 30 minutes; the anti-technical opening performance A level requirement is not less than 1 minute, the B level requirement is not less than 5 minutes; the mutual opening rate A level requirement is not more than 3/10000, and the B level is required to be no more than 10,000 points. one. When buying a lock, make clear points: First, buy a Class B lock; second, ask if the lock core and the lock body are all Class B, so as to avoid some merchants' Class B lock cores and Class A locks to fool consumers; Third, it is best to buy branded locks, such as Baodean, security, Hongli, Anheng, Jindian Atomic, etc. are the good brands; the fourth is to ask the number of keys, the general decoration key 2, the master key 6 It is best to reduce the master key if the ABC key is used. It is inconvenient if there are more people in the family.

FHM fence factory provides a variety of Double Fence Gate for your supplying chain/warehouse.You could have a multiple choice here.A metal gate is simply the entrance or exit point on a fence. It has various uses for different purposes, such as used for the house, garden, yard or used for pets and animals.

Double Fence Gate

Double Fence Gate,Double Gate Fence,Metal Fence Panels,Chain Link Fence Gate