| 摘要 |
The component has a frame (2) or other enclosing structure around an opening (3), and a closure for the opening incorporating a frame with glass (5), frame and arch with glass or a door panel. At least the frame or other enclosing formation is formed from a mineral-based compsn.. The frame function can be eliminated through the wall hole closure being given the frame shape, and the glass, arch with glass or door panel being installed directly in the wall component. |
