Brazing alloys; Gold solder; Hard solder; Metal rods for brazing and welding; Metal welding rods; Rods of metal for brazing; Rods of metal for brazing and welding; Rods of metal for brazing and welding including those from alloy steel and titanium; Rods of metal for welding; Soft solder; Solder wire; Soldering wire of metal; Welding wire