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ductile iron water pipe: Material: Ductile iron (1) The standard:ISO2531-1998,EN545-2006/EN598,Class:K8,K9 (2) Effective length:6Mfor bulk shippment, 5.7M for 20' or 40' container shippment (3) Inner surface cement linningaccording to ISO4179 and outer surface zinc+bitumen coating according to ISO8179 (4) Zinc coating:at least 130g/m2 as per ISO8179 (5) Size rang DN80-DN1200mm for main and branch water supply pipeline . (6) T-type joint for easy connection. (7) High strength ,lighter than gray iron,good corrosion resistance,no furring,small flow resistance,easy fixing,long life time (8)Checked by automatic inspection equipment (9) we also supply after sale severice such as guidance for pipeline design , PE sleeving etc. RiZhao Zhufu IndustryCo., Ltdismanufacturerwhich produce water--cooled centrifugal casting ductile cast iron pipes according to ISO2531/ EN545/EN598 in China , it has been 10 years, we are qulified in the same industry. There are4 centrifugal casting machines and4 finishing lines for DN80-1600mm, which can produce 150 thousand tons per year covering 17 sizes.