... iron pipe 1.ductile iron pipe fittings,flanged couplings 2.ISO-9001Accreditation 3.ISO2531,EN545,BS4772 4.Use:connect iron pipeductile iron pipe fitting Double EX Socket Collar1.Ductile cast iron ... , AWWA C110.2 and other standards.2. Material: Ductile iron 3. Inside with cement mortar lining / FBE coating ... zinc and then plus bitumen / FBE coating.5. Fittings: All flanged tee, all socket tee, flanged ...