... or one side key, the other is knob knob brass lock cylinderMaterial: brass, cupperType: two side key or one side key, the ... key, normal keySurface Treatment: Nickle plated, nickel brush satin nicke, brass polishing, pure copper, chrome plated, gold platedPackaging information: white single ... requireDelivery time: 25-35daysOEM & ODM: accepted cylinder for window and door