| 摘要 |
A device at a stake comprising a first (1) and a second (2) end, said first end (1) being intended to be attached to a frame (13), and a spacer material (4) is arranged between at least two stiff layers (5, 6, 7, 8) of the stake, said layers being arranged substantially opposite to each other, and the spacer material (4) has a lower density than the stiff layers (5, 6, 7, 8). |
