| 摘要 |
<p>The seal can be mounted on the free edges of the leaves (9, 19) of a double swing door. A gap of 30 mm is required between the two edges which are both housed by a seal in the form of a moulding of an approximate 'U' section. The flanges (5, 15) are doubled by a flap (16) to accommodate masked fixing battens (B), internal angle strips (12) serving to locate door edge corners. The web has an externally convex form with a central half round groove (13) straddled by two converging flanges (14). All angles are rounded and the composite section adopts a gently curved profile before fixing.</p> |
