74HB/40-75 MK BLK产品概述
A locking system is a combination of different locking cylinders that have a certain relation to each other. Depending on what is
needed, the functionalities of the cylinder can be bundled and exactly assigned. Within a locking system there are single keys, master
keys and grand master keys – this makes it possible to distribute certain access rights among different employees.
KA: Keyed Alike
KD: Keyed Different
MK: Master Key