Polyethylene pipes for water supply – GB/T13663 ISO4427 PE100 dn SDR26 SDR21 SDR17 SDR13.6 SDR11 0.6Mpa 0.8Mpa 1.0Mpa 1.25Mpa 1.6Mpa thickness kg/m thickness kg/m thickness kg/m thickness kg/m thickness kg/m 32 3.0 0.283 40 3.7 0.437 50 4.6 0.676 63 4.7 0.895 5.8 1.07 75 4.5 1.03 5.6 1.25 6.8 1.51 90 4.3 1.20 5.4…