Key slot: "S" Style                    
Lock Core: Completely copper                  
Key Material: Copper/iron/plastic handle                
Surface coating: Nickelizing/chromeplate/antique copper/gold dust and so on.                
Packing: One piece/white carton and one dozen/white carton            
Quarantee period: 3-5 years                    
OEM and special requirement from customers are acceptable.