COMPRESSED GAS EQUIPMENT AND FITTINGS MADE OF METAL, NAMELY, PLATED AND UNPLATED PIPE AND HOSE FITTINGS MADE OF METAL, NAMELY, WATER AND GAS FITTINGS FOR MIXING GASES AND WATER, PARTICULARLY FOR MIXING CARBON DIOXIDE AND WATER; METAL HOSE AND PIPE FITTINGS FOR SEPARATING OR DRAWING WATER MIXED WITH GAS, PARTICULARLY FOR CARBONATED WATER; METAL GAS STORAGE CYLINDERS, METAL GAS STORAGE CARTRIDGES AND MANUALLY OPERATED VALVES MADE OF METAL, BOTH PLATED AND UNPLATED FOR MIXING, CONTROLLING AND DI...