... soil being washed away 4.Sample are free 3D geomat for slope protection and erosion control 3D Geomat is a king ... thehigh water level and large speed current.C. Replace the concrete, asphalt, and block, using in the slope surface protection of ... -way, dyke, and the hillside, etc. Applications:1) Instead of concrete, asphalt, stone and other slope protection material, mainly apply to ...