| 摘要 |
A draining and filtering net, particularly for geotechnical applications, comprising an intermediate layer and a first outer layer and a second outer layer at the mutually opposite faces of the intermediate layer. The particularity of the invention consists in that the intermediate layer and the outer layers are provided monolithically. The intermediate layer is constituted by a plurality of substantially continuous filaments which lie along the extrusion direction. At least one layer of nonwoven fabric is further provided which is connected to one of the outer layers.
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