... : EPDM 4. Specification: DN40-DN315 5. Fittings: All socket tee, hydrant tee, flange socket, flange spigot, double socket ... cases with plastic liningWe manufacture various of ductile iron pipe fittings for DI pipe,such as bends,elbows,tees,reducers,spigots.Material ... The high quality and competitive price will give you every satisfaction. We are looking forward to serve you Ductile iron Pipe fittings