1) Material: ductile iron or grey iron 2) Size: all kinds of specifications 3) Model number: all ... 80 - 1,600 mm 8) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing ... test.DN12002.75810.787DN14003.66914.638DN15004.17516.23DN16004.66818.915 Ductile iron Pipes