| 摘要 |
t is disclosed herein a recessed lock equipped with a steel bolt and designed for use in aluminium sashes. It is composed of the sections 1 and 2 where there are properly adapted all the subsidiary accessories of the lock such as the safety guide 6with the red indication 7, the bolt 8 with the screw 9, the latch 3 with the plastic part 4, the closure element 5 with the hook 11 retained by the screw 12, the lip 18, and the strike plate 17. Due to the construction material of the bolt, the invented lock is unforceable while its bolt locks uniquely in the locking position, into the housing of the strike plate. |
