Water-pipe valves of metal; ducts of metal, for central heating installations; valves of metal, other than parts of machines; elbows of metal for pipes; ducts of metal for ventilating and air conditioning installations; steel tubes; water-pipes of metal; tubes of metal; junctions of metal for pipes; pipework of metal; three direction pipe joints of metal for water heating equipment; pipe joints of metal for water heating equipment; pipe cross joints of metal for heating installations

pipe line cocks, namely, spigots; Pipe Supplement, namely, economisers in the nature of devices for warming feed water in heating boilers for water heating equipment; faucets for pipes being parts of sanitary installations; pipes as parts of sanitary installations; cross pipes for heating installations, namely, pipes for heating boilers, heat pipes to cool heat producing components; pipe hoop for water heating equipment