high security door cylinder length: 60mm,70mm ... 9.5mm Surface:GP,NP,CP,AB high security door cylinderhigh security door cylinderMaterial: Brass, Zinc Alloy, Iron, Al ... packing, also can as customer.s designdouble lock cylinder surface treatmentCodeProductCodeProductSCsingle cylinderNBnickel brushDCdouble cylinderNPnickel platedBCbathroom ... cylinder OCoval cylinder high security door cylinder of door lock