Transportable buildings of metal; metal railway tracks and fittings therefor; pipes of metal; safes of metal; bottles of metal and containers of metal, for compressed gas or liquid air; general purpose containers of metal, under pressure; containers of metal for gases, fluids and liquids under pressure; valves and sluices of metal, other than parts of machines, for use with gases and liquids; taps of metal, for casks and for bottles; taps of metal, for casks and for bottles, with integrated p...