How does the plastic key work?

    Plastic keys just as its name implies is to use made of plastic keys, and other key, it is to opened it to match the lock, in fact, as early as the existence of ancient machine have the key, just at that time the ancient people using a lock, open the lock is the key to it's original version, may be a needle so thin, it is possible that a piece of iron plate, with the development of the society the key of The Times change, more and more accord with human body engineering, then today it said the use of the key principles.
Simple principle, is to use the key, the key bravery inside nib pop-up, the key can turn, drop the jammed doors both through. If you seen using keys to open the door is a locksmith, lily will see they make a bullet gun, one by one grain of bead all the way to play up, until all the beads play or go up, to find a group of a word can dial to open the door, then open the door.

Key no special need maintenance, but in life there are always some more sorry things happen, namely, there will be a key or insert wrong examples of door opening, door locks are now have a lot of teeth all anastomosis were needed to open the door, so it's difficult to general thrust fault locks out at that time don't use brute force, can slowly rotating see can pull out, if not the best looking unlock teacher for help. Avoid using brute force to lock the key in the door lock.