| 摘要 |
The invention discloses a window top covering, which is used to cover the transitional area of the frame and the top of the sash of the window, seal and water proves the top of an openable window. It comprises a first top covering which is placed on the top part of the frame, and a second top covering which is placed on the top part of the sash, where the first top covering having a downwardly bending front edge and the bending back edge, where the said back edge is below the said front edge engaging with each other allowing rotation between them. This window top covering has a better sealing performance, wider open angle and a decent appearance. It is in particular suitable for a sloped roofwindow.
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