The steel wire coated with PVC is processed into a spiral shape as a skeleton, which is wound with hot-rolled cloth on the skeleton. It has the advantages of high permeability and large displacement, which can replace the traditional PVC perforated pipe for water seepage.

Product specification: according to the outer diameter: 50 mm, 80 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm.

Product features: small pore diameter, all-round water permeability, good permeability; high compression and tension resistance, long service life; good corrosion resistance and microbial erosion resistance; good overall continuity, few joints, convenient connection; soft texture, good combination with soil and other advantages.

Application scope: 1. Vertical and horizontal drainage in the north of retaining wall; 2. Drainage of railway subgrade, road shoulder and soft soil foundation; 3. Drainage of underground passage; 4. Drainage of ash dam and water conservancy dam; 5. Drainage of highway central isolation belt and protection of vegetation; 6. Drainage of sports field; 7. Horizontal drilling drainage; 8. Slope protection of sliding ground drainage; 9. Drainage of garden and flower terrace; 10. Water and soil conservation; 11 Underground drainage of foundation engineering; 12. Drainage of depression and reconstruction of saline alkali land.

Product executive standard: JC 937-2004 "flexible pervious pipe"