| 摘要 |
The invention relates to a movable panel 1 comprising a first outer layer 3 consisting of a continuous metal sheet, a second inner layer 4 consisting of a series of parallel metal profiled members 5 having a cross-section in the shape of a capital omega, and a third outer layer 8 consisting of a series of metal strips welded side by side to the profiled members. It furthermore comprises, between the fourth 4 and the third 8 layer, a fourth layer 11 consisting of a series of parallel metal profiled members having a cross-section in the shape of a capital omega and oriented perpendicularly to the profiled members 5 of the second layer. <IMAGE>
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