... all kinds of specifications 3) Model number: all kinds PVC fittings 1. Material: GGG50 2. Surface: Blue epoxy coated or bitumen ... coated 3. Gasket: EPDM 4. Specification: DN40-DN315 5. Fittings: All socket tee, hydrant tee, flange socket, flange spigot, double ... cases with plastic liningWe manufacture various of ductile iron pipe fittings for DI pipe,such as bends,elbows,tees,reducers,spigots ...