Single Side PC Key Cylinder Lock

Hardened steel pin to hr60 as the unti-drilling function. Sintered steel cam / cogwheel is available.  no-magnetic spring with high security. 1.   heat treated steel vertical  drill-resistant pins on both side of cylinder2.  mushroom counter pins resistant to attack.3. 6rounded-head picking proof combination pins.4. Ownerkey:  5 pcs5. Ownercard: as a indication of the key duplication and quality guarantee6. construction key system7.   master key or key alike are available8.  finish:  01-brass polished with varnish    02-bright nickel plated   03-satin nickel plated   l a b finish qty/box 40 30 10 01,02,03 6 45 35 10 01,02,03 6 50 40 10 01,02,03 6 55 45 10 01,02,03 6 60 50 10 01,02,03 6 70 60 10 01,02,03 6 80 70 30 01,02,03