Geotube is a kind of tubular geotextile bag with filtering structure made by sewing high tenacity polypropylene yarn (flat yarn and split film yarn) fabric after cutting and sewing process. The geotextiles are featured wih high tensile strength, high wind and wave resistance, corrosion and erosion resistance, good percolation, light weight, soft texture, easy processing, convenient construction, and good combination with soil, etc. The size can be customized as request. <br> Applied to environmental protection, agriculture and other fields. Like rivers, lakes, reservoirs, seaports, wharves and industrial sludge treatment etc.