high security door cylinder length: 60mm,70mm,80mm,90mm euro: ... *16.5*9.5mm Surface:GP,NP,CP,AB high security door cylinderMaterial: Brass, Zinc Alloy, Iron, Al, etc.Length ... so on. key way:S-groove key (normal key)Computer keycombination lock parts Surface finishing :Gold plated, chrome plated, ... bronzeRCround cylinderACantique copperHPhalf picks cylinder OCoval cylinder high security door cylinder