Fittings of metal for connecting pipes and tubes, namely, clips, brackets, tees, flanges, bends, elbows for pipes, bends, couplers, connectors, namely, metal pipe connection fittings for connecting sections of pipes and tubes, washers and caps for sealing the ends of pipes and tubes, plugs, nipples, pipe connectors, pipe fasteners, flanges, washers, stop ends, namely, metal fittings used as leak-proof seals at the ends of rigid pipes and tubes, and caps for pipes, all of the foregoing goods made of metal; pipes of metal; tubes of metal; valves, namely, metal valves not being machine parts, manually operated metal valves; nuts of metal; metal seals for use in plumbing and heating applications; and structural parts and fittings for the aforesaid goods; all of the foregoing goods for use in the fields of heating and plumbing

Pipe connection fittings specifically designed to be used as integrated parts of water supply, air conditioning, heating, ventilation and sanitation systems, namely, water and gas pipes and tubes, stop ends, pipe connectors, tees, flanges, bends, and elbows for water and gas pipes; valves, namely, regulating accessories for water supply, namely, metered valves, valves for central heating radiators, valves for boilers for heating installations, valves for heating installations, thermostatic valves as parts of heating installations, gas regulators, valves for water purification installations, valves for water softening apparatus and installations, valves as parts of radiators; and structural parts and fittings therefor; all of the foregoing goods for use in the fields of heating and plumbing

Pipes not of metal, namely, non-metallic drainage pipes, non-metal water pipes; accessories for non-metal pipes, namely, non-metal pipe collars, plastic pipe supports, non-metal pipe connectors, namely, non-metal pipe fittings for rigid pipes and non-metal couplings and joints, non-metal elbows for pipes, non-metal pipe fittings for rigid pipes; and structural parts and fittings for the aforesaid goods; all of the foregoing goods for use in the fields of heating and plumbing