... -480g/m2 5)thickness:10~20mm... Characteristics: Geomat is a king of new 3D structural geotechnical synthetic material, which is applied to ... compound protection layer with the vegetable, standing the wash-out of the high water level and large speed current. 3. Replace ... concrete, asphalt, and block, using in the slope surface protection of roadway, railway, river-way, dyke, and the hillside, etc.Any ...