HDPE double wall corrugated pipe Features ● external anti-shock and strong: when to external impact, recovery superior performance, in the case of ground subsidence will not rupture. ● excellent chemical resistance: acid, alkali, corrosion resistance. ● superior wear resistance: more than steel, cast iron pipes, cement pipes and wear resistance. ● fluid resistance: wall smooth, fluid resistance of the drainage speed, large capacity through the water. ● stable physical properties: anti-aging, when the surface is not affected by direct sunlight. ● Light weight: Light weight, transport, easy connection, short construction period, easy management and maintenance. ● environmental impact: non-toxic, harmless to land, can be recycled. ● Enhanced superiority PE spiral steel bellows than PE double wall corrugated pipe ● using strong steel gifts, ring stiffness can reach 15KN / m3 ,, the impact of any foundation has good adaptability. HDPE double wall corrugated pipe product parameters Project HDPE double wall corrugated pipe PE spiral steel reinforced bellows shock resistance (TIR /%) ≤10 ≤10 flexible ring no reverse bending, no rupture, two walls no excuse not broken, walls No excuse oven test no bubbles, no delamination, no crack no bubbles, no cracking creep rate ≤10 ≤2 peel strength - ≥70 seam tensile strength / N -> 1460 Executive Standard GB / T19472.1-2004 CJ / T225-2006