... Lock 2. Material: Brass/Zinc/Aluminum 3. Finish: PB/SN/CP 4. Double open or single open 5. OEM welcome Brass ... ,Zinc alloy,Aluminum.2.Lock cylinder length(mm):30,40,50,60,70,80,ect.3.Keyway:E-computer key,S-normal ... , public area..5.Finish:PB,GP,AC,AB,SN,NP,CP ect. high quality brass cylinder, profile cylinder, Euro profile cylinder ...