1, E-computer key 2.Materials:brass,etc 3.Key way:S or ... ,SN,BP,etc 5.Used:bedroom,public area,etc Brass computer keySpecifications:(1) Material: brass, zinc alloy ,aluminum alloy, etc.( ... available(3) Key way: S-groov key(Normal key) or Computer key(4) Used in bedroom, public areas and etccylinder typesurface ... .5S----keyway3703535NB---surface treatment 47537.537.5O----handle5804040 Brass computer key