Cloud carpet is a 3D erosion control mesh mat extruded with PA or PP, it can be uesd as an artificial root system to maintain soil particles and seeds, reduce water flow and wind speed, create a micro environment suitable for seed growth, and provide reinforcement for vegetation roots. It has excellent water storage ratio, strong water retention, no loss of business, synthetic materials, no corrosion durable, light weight, flexibility and toughness, easy to cut various shapes, less soil, conducive to waste water reuse.