Wang Li anti theft door I used the B key, why can the A key still be used, now it is A

Normally, there will be no such problems? The quickest is to directly inquire about the distributor or manufacturer, will it be the special performance of the product?

The marble room in the pit corresponding to the different depths of the A (decoration key) and B key has a special structure and is equipped with a 1mm steel ball between the upper and lower marbles. When the A key is used, the height of the lower marble in the marble chamber plus the height of the small steel ball is just flush with the lock cylinder, so the lock cylinder can be unlocked by twisting the lock cylinder with the A key; When using the B key, just the small steel ball can be pushed out of the lock cylinder, that is to say, the lower bead and the lock cylinder are flush at this time, so the B key can also be twisted to open the lock cylinder (this principle is the same as the mother and son key system), but when the lock cylinder rotates at a certain angle, the small steel ball will be affected by the action of the spring spring, and fall into the blind hole that is cleverly designed on the lock cylinder in advance (this is the difference with the key system), some people call this small blind hole a trap, very appropriate. The diameter of this blind hole is larger than the small steel ball, but smaller than the diameter of the marble, otherwise the marble will fall and the lock cylinder will be stuck and cannot be unlocked. >>>More

Wang Limen's self-developed lock body lock core, the lock body lock core is more complex, and it is inflexible to see whether it is the lock core or the lock body question. If you want to lock the core, put some pencil powder into the lock core and turn it back and forth a few times to solve it. The lock body should be lubricated on each moving part (the lock core can not be added and is not durable).

It shouldn't be that it can't be matched, it's that Wang Li's key embryo is unique, not the same as other keys, and the slotting and teeth are not ordinary tools that can be matched with keys. The market share is not large, and there are no special machines and tools for key distribution, so there is no place to distribute them.

Hello, why can't I change the key to my door, what's wrong.