1.Product：Double Cylinder
2.Dimension(mm):
A:	60	62	63	68	70	80	90	100
B:	30	31	31.5	34	35	40	45	50
C:	30	31	31.5	34	35	40	45	50
3.Key slot: Plane slot  (computer slot)
4.Lock Core:  Completely copper
5.Key  Material:  copper/iron/plastic handle
6.Surface coating:nickelizing/chromeplate/antique copper/gold dust and so on.
7.Packing:one piece/white carton and one dozen/white carton
8.Quarantee period ：3-5 years
9.OEM and special requirement from customers are acceptable.