Ductile iron pipes The standed:ISO2531-1998,EN545-2006,Class:K8,K9 OD:DN80-1200mm Ductile Cast Iron Pipe We are the supplier of centrifugal casting ductile iron pipes according to ... least 130g/m2 as per ISO8179(5) DN80-DN1200mm(6) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow ...