| 摘要 |
<p>Open plastic channel section sill for French windows. An external vertical wall acts as a doorstop behind which are two parallel interconnected channels, the outer for rainwater seepage, the inner for collection of condensation. The two channels are connected along the length through the central reinforcement rib by three oblique holes. Under each sill is placed a central outlet box for drainage, a fixing clamp, and a corner plate connected to both the box and the clamp. A top cover plate screwed through to the sill has a hole to receive the window bolt.</p> |
