EC plastic HDPE double wall corrugated pipe wall reinforced with a special hollow curved design, not only has a good general corrosion resistance of plastic pipe, insulation, wall smooth, fluid flow resistance and other characteristics, but also has excellent The ring stiffness and good strength and toughness, and light weight, high impact resistance, unbreakable, fast construction and long service life, as compared with other structures of the pipe, easy transportation and installation, reliable and greatly reduce the labor intensity of construction workers and engineering costs, 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) piping system in the first part of the wall structure: Polyethylene double wall corrugated pipe" standards for production. Resilient seal accord HG / T 3091-2000 requirements of. The company mainly produces ring stiffness of SN4, SN8 grades. Product outer wall colors generally 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. wall smooth, water resistance is small, does not scale, through hydro power. 4. Connect convenient, with good sealing performance does not leak. 5. chemical 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.