... EN545 3.T- type centrifugal casting ductile iron pipes according to ISO2531 and EN545Material:Ductile iron(1) standed:ISO2531-1998,EN545-2006,Class ... DN1600mm(6) T-type(7) High strength ,lighter than gray iron,good corrosion resistance,no furring,small flow resistance,easy fixing ... NBR/EPDM rubber gasket in accordance with ISO4633.(9)Packing: Pipes from DN100 to DN300 be bundled with steel belts, others ...