Common metals, semi-worked, for use in further manufacturing; Common metals, unwrought and semi-worked, for use in further manufacturing; Common metals, unwrought, for use in further manufacturing; Junctions of metal for pipes; Metal valves not being parts of machines; Non-ferrous metals and their alloys; Pipe connectors of metal; Valves of metal other than parts of machines including those from alloy steel and titanium; Water-pipe valves of metal