bronze; bronzes for tombstones; bronzes [works of art]; rope thimbles of metal; copper, unwrought or semi-wrought; copper rings; water pipes of metal; drain pipes of metal; pipes of metal; brass, unwrought or semi-wrought; pipe muffs of metal; valves of metal, other than parts of machines; pipework of metal; door frames of metal; drain traps [valves] of metal; copper wire, not insulated; gutter pipes of metal; branching pipes of metal; manifolds of metal for pipelines; penstock pipes of metal