... / PE100 (now we mainly use pe 100).Sizes: 20mm--630mmSDR: SDR11,SDR13.6,SDR17,SDR21,SDR26,SDR33Pressure: 0.4Mpa, 0.6Mpa, 0.8Mpa, 1.0Mpa, 1 ... technique,convenient construction and lower cost of the whole engineering,6.Smooth interior wall, small water resistance, high flow capacity,7 ... .Recyclable, benefit to the environmentOur company: high quality PE water rubber pipe manufacturer