| 摘要 |
<p>The roller shutter housing (3) has a jamb (1) with its lower edge covered by separate reinforcing (6) and trim (7) extrusions for at least part of its length. The trim extrusion is designed to cover the reinforcing extrusion at least partially on its visible side; it has a stop section (10) for an outer covering layer (11), while the reinforcing strip has surfaces (8, 12) to grip the housing and covering layer. The reinforcing extrusion is made e.g. from metal, and the trim extrusion of plastic.</p> |
