... *16.5*9.5mm Surface:GP,NP,CP,AB high security door cylinderMaterial: Brass, Zinc Alloy, Iron, Al, etc.Length: 40mm ... ,70mm,80mm,83mm,90mm Cam : sintered steel ( very hardened ) Key : iron key or brass key ( 3pcs /set , 5pcs /set ) Lock core: brass or ... button, rhombus button, oval button ans so on. key way:S-groove key (normal key)Computer keycombination lock parts Surface finishing :Gold plated ...