| 摘要 |
A window or door frame for a structural facade, of the type having punctually suspended panes, comprises at least a first pane capable of moving, whereto a gasket is operatively associated, able to pass from a respective operative condition to a respective inoperative condition, and vice versa, as well as an actuating unit, able to be selectively operated to cause passage of said gasket between the respective operative and inoperative conditions.
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