Standard function:
1. Heat treated steel vertical  drill-resistant pins on both side of cylinder
2. Mushroom counter pins resistant to attack.
3. 10 rounded-head picking proof combination pins
4. Owner key:  5 pcs
5. Owner card: As a indication of the key duplication and quality guarantee
Optional Function:
6. Service key system: 1pcs,Once the owner's key be used, the service key will be disabled.
7. Master Key or KA are available
8. Finish:   01-Brass polished with varnish
                    02-Bright Nickel plated
                    03-Satin Nickel Plated