Enhanced HDPE double wall corrugated pipe wall using a special hollow curved design, not only ordinary plastic pipe good corrosion resistance, insulation, wall smooth, fluid flow resistance and other characteristics, but also has excellent ring stiffness and good strength and toughness, and light weight, high impact resistance, not damaged, and fast construction and long service life, as compared with other structures of the pipe, convenient transportation and installation, reliable and greatly reduce the labor intensity of construction and engineering cost, it has been widely used at home and abroad. Large number of alternative concrete pipe and cast iron pipe. The company's products according to GB / T 19472.1-2004 "Buried polyethylene (PE) structure wall pipeline system for the first part: Polyethylene double wall corrugated pipe" standards for production. Resilient seal accord HG / T 3091-2000 requirement of. The company mainly produces ring stiffness SN4, SN8 grades. Product outer wall of color in general are black. Product Features 1. High strength, excellent compressive strength, impact resistance. 2. Good toughness, excellent shock resistance, suitable for soft soil foundation of quicksand. 3. The smooth wall, the water resistance is small, does not scale, through water and strong. 4. Connect convenient, with good sealing performance without leakage. 5. chemically resistant, non-polluting. 6. Good resistance to low temperature performance, good electrical insulation properties. 7. Light weight, easy handling and installation, low cost and long service life. Product Applications 1. Municipal Engineering rainwater, sewage and drainage works residential quarters. 2. farmland irrigation water, drainage. 3. The sewage treatment, garbage disposal and drainage conveyance. The chemical industry, mine ventilation and chemicals, mining for fluid delivery. The communication cable, cable sheathing, electrical cable sheathing. 6. The drilling project wall pipe (perforated wall corrugated pipe). 7. fishery water.