主要材质：锌合金
Material: Zinc alloy

选用锁体：7255锁体
Select body: 7255 lock body

表面处理：镀锆
Finish: PVD

适用范围：房间门、户外门、大门
Available for: room door, outside the house and gate

适用标准：QB/T2474-2000
Applicable standard: QB/T2474-2000

锁体中心距：72mm
Center distance of lock body: 72mm