| 摘要 |
The element (1) has an upper section (5), a middle section (10) and a lower portion (15), where the stiffening element is made of regenerating raw material and timber or timber products. The upper section comprises an S-shaped bend (20) and the lower portion comprises a kink (25), where width of the stiffening element is ranged from a specific centimeter to maximum width of a spine portion. A surface of the stiffener element is designed in a smooth manner and provided with wood preservative i.e. linseed oil, to be protected against influences from the weather. An independent claim is also included for a backpack. |
