Different flower series (KD): the key of each security padlock is unique, between the lock and the lock can not open each other.
2. Flush series (KA): specify the group lock and lock all can open to each other, any one key can open all the padlock within the group
3. Secondary management key series (MK): the specified group with a padlock with a unique key, lock and lock can not be separated from each other, but there is a secondary management key can open all the padlock within the group.
4. With the flower secondary management key series (KAMK): designated multi-group flush series, groups and groups can not be separated from each other. There is a secondary management key that can open all groups.
5. Three-level management key series (GMK): designated multiple groups of different flowers, groups and groups can not be separated from each other, each group is equipped with a secondary management key. There is also a three-level management key that can open all the security padlocks.
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