| 摘要 |
Each of the facing sections A1-A3 comprises at the free end of the flange 5 an elbowed return element 5a which, equipped with an external retention notch, is capable of being pressed against the external face 15 of the timber frame C-D by the external flange 18 of a continuous fixing strip B4-B5 having a general U-shaped cross-section, elastically capping an external rib 38 of the frame C or D, the other flange 19 of which strip being elastically snap-fitted into a groove 37 of the timber frame and the web 17 of which strip being parallel to the subjacent internal face 2 of the timber frame. <IMAGE>
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