| 摘要 |
<p>The profiled section forms part of a door- or window-frame, being built up of inner and outer metal profiled sections joined together by a profiled section of material with a low rate of heat conductivity. The latter section is of rubber or similar material (3), clamped between the inner and outer metal sections (2,1), which are spaced apart. The rubber section has one or more parts, in cross-sectional view, which can be distorted to a greater degree that the remainder of it, and typically formed by thin extensions.</p> |
