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The utility model relates to a lock, in particular to a flat door lock. Background technology swing door refers to the door with hinges installed on the side of the door, inward Aluminum alloy Sliding window lock (left inside opening, right inside opening) or outward opening (left outside opening, right outside opening). It is composed of door pocket, hinge, door leaf, lock, etc. as the main structure, the flat door lock has the effect of anti-theft. However, due to the problems in the current structure, the handle of the door lock is easy to fall off, the safety lock is not complete, or the phenomenon of being stuck, as well as the panel is very easy to deform, and the back cover is not sealed, which makes the internal parts easy to rust, thus causing the disadvantages of short service life Therefore, we propose a flat door lock. Br > the utility model is only for the reference of the research and development personnel who have not obtained the patent for the utility model flat lock, and can not be used for the research and development of a aluminum frame window handles practical flat lock.
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