brass,aluminum door cylinder of door lock length: ... 9.5mm Surface:GP,NP,CP,AB brass,aluminum door cylinder of door lockMaterial: Brass, Zinc Alloy, Iron, Al, etc ... finishing :Gold plated, chrome plated,nickel plated, polished brass,satin nickel, satin chrome, antique bronze platedantique copper ... cylinderACantique copperHPhalf picks cylinder OCoval cylinder brass,aluminum door cylinder of door lock