dead bolt lock 弹子门锁

bolt lock lever 联锁箱控制握柄

two-bolt lock 双层锁栓锁

spring shackle bolt lock 弹簧吊钩保险

bolt-lock 枪机闭锁器 ; 螺栓保险

axle bolt lock 车轴螺栓锁片

Lock bolt 锁紧螺钉 ; [机] 锁紧螺栓 ; 防松螺栓 ; 锁定螺栓

Kingpin lock bolt 主销锁紧螺栓

dead-bolt lock 门栓