| 摘要 |
The lock (1) for metal door and window frames is of the type which extends substantially longitudinally, having a series of projections (2) which may be inserted in a corresponding seat or guide on the mobile frame of a door or window, the lock consisting of a single body and having at least one slot (3) which extends longitudinally and, thanks to the reaction of the material used for the lock (1), compensates any play between the projections (2) and the guide. <IMAGE> |
