| 摘要 |
The invention relates to a folding plastic sheet having a folding notch or joint 2 which extends between opposite ends of the sheet. The sheet can be folded in only one direction in the joint to form a blunt folding edge. In the joint there is a string-shaped reinforcement 3, which is turned outwards when the sheet is folded in the joint and which reinforcement is joined to the material of the plastic sheet in the region 4 for the blunt folding edge. <IMAGE> |
