... 100%polyethylene diameter:20,25,32,40,50,63,75........315 SDR:1.6Mpa;1.25Mpa,1.0Mpa,0.8Mpa;0.6Mpa ... matters or electron chemical corrosionLower Installation Costs: light weight and ease of installation can reduce installation costs by as ... 6, PN1.0MPaSDR11, PN1.25MPadn enenenenen25 2.332 3.040 3.750 4.663 4.75.875 4.55. ... PN1.25MPaSDR11, PN1.6MPadnenenenenen20 2.325 2.332 3.040 3.750 4.663 4.75.875 4.55.66 ...