6 Pipes and tubes; tube lines and hose lines; connection fittings for tubes and hoses; end caps for tubes and hoses; flange couplings; push-in connectors, plug-in connectors, screw connectors (not being parts of machines); valves (not being parts of machines); filters for tube and hose line systems and for connection systems (not being parts of machines); couplings, plugs, thread adaptors, adaptors, manifolds, reducers and reducer inserts, screws, nuts; all aforementioned goods being of metal; metal hardware; building and construction materials and elements of metal; buildings, prefabricated and/or transportable buildings of metal; floor drains of metal; floor boards of metal; floor sections made of metal; mouldings of metal; railings of metal; posts of metal; frameworks of metal; trellis of metal for supporting plants; containers of metal; tanks of metal; reservoirs of metal for water