... FRP water Pipe 1) Light weight, high strength 2) Corrosion resistance 3) Various specifications 4) excellent ... the computer2 Product Features 1) Light weight, high strength 2) Corrosion resistance, excellent weather ability3) Various specifications, ... heat preservation, the pipeline5 specificationDiameter: DN400-DN4000mmPressure grade: P≤2.5Mpa.Rigidity grade: SN10000, SN20000, SN30000.Length: 2m, ...