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Woven Geotextile Grout Filled Mattress for Channel Dredging and Improvement. Flexible Erosion Control: Adapts to riverbeds and bank slopes to disperse current energy and prevent erosion. Durable PP Material: Made from high-strength, UV-resistant polypropylene for long service life in harsh conditions. Rapid Installation: Deployed quickly using standard equipment or manual labor to save project costs and time. Sediment Containment: Retains sand or riprap inside to construct stable underwater or submerged embankments. ISO9001 Certified: Manufactured under strict quality control with 100% inspection before shipment. Established Manufacturer: Factory established over 15 years, supplier to China Communications Construction Group.