CNBM ductile iron pipe ranges from DN80-DN2200mm (T-Type, Class K9), effective length 6m, comply with ISO2531 Standard Company ... .Product IntroductionCNBM ductile iron pipe ranges from DN80-DN2000mm (Tyton, T-Type, Class K7/K8/K9), effective length: 6m, complying with ISO2531and ... are in bulk.Payment term: L/C, T/T.Packing: In bulk vessel or in container. DN80-DN2000 ISO2531 T-Type ductile iron pipe