| 摘要 |
A window frame comprises first and second window pane mounting frame pieces generated from a single extrusion with a bridge between the two frame pieces. The frame pieces are separated from one another at the bridge producing a bridge part on each of the frame pieces. The first frame piece has a side recess aligned with its bridge part to receive a fastener for mechanically securing the frame pieces back together with one another from opposite sides of the window pane through the bridge parts of the respective frame pieces.
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