A54MM zinc alloy cylinder lock Length: Any size can choose Keys: Normal ... lock1-Single Side Open Cylinder Lock2-Shape: Mortise Door Lock 3-Usage: Household Door Locks 4-Type: Key ... Material: Brass Key or Iron Key 11-Open: Double Side Open or Single Side Open 12-Surface Finished: ... Np, Gp, Ab, AC and So onHigh quality guarantee Lock cylinder; Brass, zinc alloy, aluminium material are optional; Allcolor ...