| 摘要 |
The plastic section (30) is a planar plastic film (31) on the margins of which have been formed one or several tubular parts (32). At least in one tubular part (32) has been formed a plurality of spaced holes. The outermost tubular parts (34) have been arranged to serve as supporting means for the plastic section (30). The plastic section (30) is used as a gutter that can be flushed with a liquid. |
