... pvc pipe 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 ... : wooden cases with plastic lining. ductile iron pipe fitting for pvc pipe (all socket tee)