... ,ASTM C151SUNS PIPELINES COMPANY LIMITED can offer many kind of Ductile iron pipe:1) Diameter: DN80 - DN800, we also can offer DN125 ... : 5.5m -6.1m;4) Inner cement: Ordinary portland cement, sulphate resistant cement, high-alumina cement;5) Outside coating: Zinc coating(130g/m2 ... , BV inspection report or other third inspection party;9) Class: K7, K8, K9, K10, K12, class 30, class 40 Ductile iron pipe