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. Special designed  combined pins for snake key way. The combination of code up   to  14,300,000

5. Owner key:  5 pcs

6. Owner card: As a indication of the key duplication and quality guarantee Optional Function:

7.   Service key system: 1pcs,Once the owner's key be used, the service  key will     be disabled. 

8.   Master Key or KA are available

9.   Finish:   01-Brass polished with varnish

                  02-Bright Nickel plated

                  03-Satin Nickel Plated