... , BS4772 , AWWA C110; 2.size:DN80-DN2600; 3.material:ductile iron. Ductile Iron Pipe Fitting 1, standards : SO2531, ISO4422, EN545 , EN598 , BS4772 , ... AWWA C110 . 2, material : GGG500-7 or other ductile iron . 3, coating : fusion bonded epoxy coating ; cement lining ... request . 6, others : flanged pipe fittings , push-on Tyton socket fittings , ductile iron/PVC fittings , Ktype bolted gland fittings ...