ductile iron pipe fittings for pvc pipes connection 1. Material: GGG502. Surface: blue epoxy coated or bitumen coated3. Gasket: EPDM4. Specification: DN40-DN3155. Fittings: all socket tee, hydrant tee, flange socket, flange spigot, double socket bend 90°45°22.5°.11.25°, end caps, double socket reducer, double socket collar threaded branch.6. Packing: wooden cases with plastic lining. end cap