... deliver time Ductile iron pipe, DN80-DN800,K7-K12, GB13295,ISO2531,EN545,EN598,ASTM C151SUNS PIPELINES COMPANY LIMITED can offer many kind of Ductile iron pipe:1 ... ) Diameter: DN80 - DN800, we also can offer DN125;2) Standard: GB13295, ISO2531, EN545, EN598, ASTM C151;3 ... ) Class: K7, K8, K9, K10, K12, class 30, class 40 Ductile iron pipe