Maxi Range CouplingDN40 to DN700PN10/16ADD TO LISTMaterials & Relevant Standards END RING : DUCTILE IRON GGG-50 BODY : DUCTILE IRON GGG-50 / CARBON STEEL GASKET : EPDM / NBR / SBR BOLTS & NUTS : CARBON STEEL / SS304 / SS316 COATING : EPOXY coating