inch ductile iron pipe 1.ISO2531,EN545,GB/T13295-2003,K10 2.DN100-1000mm 3.Pull strength: >420MPa Details of inch ductile iron pipe:(1) The standed ... :ISO2531-1998,EN545-2006,Class:K8,K9,K10,K12 (2) Effective length:6M by buly shipment,5 ... T-type K-type(8) High strength ,lighter than gray iron,good corrosion resistance,no furring,small flow resistance, easy fixing ...