Arc welding apparatus; parts and accessories for arc welding apparatus; power sources for arc welding apparatus; electrode wire feeders and dereelers; control devices for arc welding apparatus, namely, filler wire and electrode feed controllers and gas flow controllers for gas shielded arc welding; cable assemblies for arc welding; welding guns, gas shielded and submerged arc welding guns; electrode holders, earth clamps; consumable and non-consumable arc welding electrodes, solid and tubular wires or rods in continuous and discontinuous form, flux coated and flux cored electrode wires and rods and self shielding flux cored electrode wires and rods; arc stabilising devices; electrical cables and leads; protective clothing, namely, helmets; face screens, goggles and spectacles; leather aprons, gloves, jackets and leggings.