What do you mean by matching keys? What do you mean by matching keys?

1, key matching means that the key is lost or broken. You should get a key from the lock repairer and get a new key according to the spare key. Matching keys are generally based on keys. The main materials for making keys are copper, aluminum and other metals.

2. Pay attention when matching keys. Some key blanks are made of metal, but they are really inferior. Before long, the teeth will be worn out. A good metal blank gives off a crisp metal sound, while a poor metal blank gives off a dull sound similar to the collision between plastic and hard desktop.