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

n 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