... keys or others can choose A54MM zinc alloy cylinder lock1-Single Side Open Cylinder Lock2-Shape: Mortise Door Lock 3-Usage: Household ... 10-Key Material: Brass Key or Iron Key 11-Open: Double Side Open or Single Side Open 12-Surface Finished: Cp ... , Np, Gp, Ab, AC and So onHigh quality guarantee Lock cylinder; Brass, zinc alloy, aluminium material are optional; Allcolor can be ...