The latch is a simple component that prevents the door from opening. It is usually metal, divided into two parts, one with movable rods and one part with a "nose". Usually the part with the rod is fixed on the door, the nose is fixed on the door frame, and the position is corresponding. It is much simpler than the structure of the lock, but the effect is equivalent, only the lock is outside the door, and the bolt is in the door. When using, insert the rod into the nose.
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