... , the coating of the fitting is zinc and bitumen or epoxy.1, Standards : ISO2531, ISO4422, EN545 , EN598 , BS4772 , ... 7 or other Ductile iron . 3, coating : Fusion bonded epoxy coating ; cement lining inside and zinc primer andbitumen painting outside ... with plastic layer, steel crates .5, accessories such as gaskets , bolts and nuts available upon request .6, flanged pipe fittings , double flange pipe ...