1.Material:PE100 2.Size:200-800mm 3.Specification:SN4,SN8 HDPE double wall corrugated pipeHDPE density ... (nominal inner diameter):200mm, 225mm, 300mm, 400mm, 500mm, 600mm, 700mm ,800mm and 1000mm.Product characteristicsl Unique product structure, thus high pressure ... higher than common steel pipes at a flowing rate of 15 feet per second. 200-800mm HDPE corrugated pipe