| 摘要 |
The invention relates to a sheet of a given size, having a rear face and a front face. The invention is characterised in that it includes at least one part which is made from fibrous material and at least one other part which is made from plastic material and which is adjacent to the fibrous part, said parts being joined at a zone in which the two materials overlap. The plastic part at least partially forms a side zone of the sheet that is free of fibrous material and the plastic part includes at least one transparent or translucent zone. |
