Filament geotextile is needle-punched polyester filament non-woven geotextile. Not containing chemical additives and not being heat treated, it is environmental building materials.  It can replace the traditional engineering materials and construction methods, safe in construction , and can contribute to environmental protection. Meantime it's able to solve the problems in engineering construction more economically, effectively and durable. Filament geotextile has good mechanical function, good water permeability, and anti - corrosion, anti - aging, also isolation, filtration, drainage, protection, stability, reinforcement and other functions. It can adapt to uneven base construction, resist external damage, creep, can still keep the original function under long-term load.

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Water conservancy project: the sea wall, dyke and lake dam project standards, reservoir reinforcement engineering, reclamation project, flood control.

Highway and railway air harbor engineering: soft foundation strengthening treatment, slope protection, pavement anti reflection crack structure layer, drainage system, green belt separation.