Polypropylene geotextile bags offer excellent permeability, filtration, durability, and are widely used in projects such as railways, highways, sports complexes, embankments, hydraulic structures, tunnels, coastal areas, reclamation, and environmental protection. They mainly include short-fiber needle-punched nonwoven polypropylene geotextile and split-filament woven polypropylene geotextile. Functions of polypropylene geotextile bags: 1. Utilize the good air and water permeability of polypropylene geotextile to allow water flow through, effectively intercepting the loss of sand and soil. 2. Effectively distribute, transfer, or decompose concentrated stress, preventing the soil from being damaged by external forces. 3. Prevent the mixing of sand and stone, soil, and concrete between layers. 4. The mesh is not easily blocked due to the strain and mobility of the reticulated structure formed by the irregular fiber organization. 5. High permeability, maintaining good permeability under the pressure of soil and water. 6. Corrosion-resistant, made from polypropylene or polyester fibers, resistant to acids and alkalis, non-corrosive, non-pest-infested, and anti-oxidation.