Pipes, tubes and valves of metal, metallic pipe couplings and fittings for the aforesaid goods; clamps of metal, including flanged take-offs

Regulating and safety accessories for water, fluid or gas apparatus and pipes and conduits; water conduit installations; water distribution installations; water supply installations; apparatus and equipment for use in under-pressure installation of new pipes and conduits and/or repair of damaged pipes and conduits, and connection thereof to mains supply; and parts of and accessories for such goods as are included in this class, including valves and valving, plugs (expansible and otherwise)