Three Level Locks have 2 master key:

Group Master and General Master Key.

It have 5 groups: A/B/C/D/E. Each Group master key

only could open its group of locks.

For example. A Group master key could open A group locks

which couldn’t open B/C/D/E group locks.

The General master key could open all the three level locks.

INTERNAL WAVE KEY (for LK Series)

Composed of two different cutting process

-Cutting Edge and State of the Art Key Production Technology.

This type of key has more security than the usual home key

and not easy to get copied.

This Internal Wave Key is capable

of 1,200 combinations for keying purposes.