... C110, BS5772; 2.size:DN80-2600; 3.material:ductile iron. Ductile Iron Pipe Fitting 1, Standards : ISO2531, ISO4422, EN545 , EN598 , BS4772 , AWWA C110 .2, Material : GGG500-7 ... , bolts and nuts available upon request .6, Others: flanged pipe fittings , push-on Tyton socket fittings , ductile iron/PVC fittings , Ktype bolted gland fittings , AWWA C110 flanged pipe fittings .