Universal Flange Adaptor (long sleeve)OD50 to OD500PN10/16ADD TO LISTMaterials & Relevant Standards END RING : DUCTILE IRON GGG-50 BODY : DUCTILE IRON GGG-50 GASKET : EPDM / NBR / SBR BOLTS & NUTS : CARBON STEEL COATING : EPOXY coating.