1) Ductile cast iron fitting-Flange socket 2)Class K9/K12/K14 3)ISO2531,EN545,BS4772 ... type 1.Push on joint ductile cast iron fitting-Flange socket produced according to ISO2531, EN545, BS4772, EN598, AWWA ... FBE coating.5. Fittings: All flanged tee, all socket tee, flanged bend, socket bend, blank flange, flange bell mouth, collar and so ... 300MPa≤250HB Push on joint ductile iron fitting-flange socket