7 Gas welding guns; welding torches; electric arc welding apparatus; welding cable; welding electrodes for welding machines; fittings of metal for gas welding hoses; ferrules of metal for gas welding hoses; flap discs for power-operated grinders; wire wheels for power-operated grinders; welding torches parts, namely, nozzles, metal insert gun liners, insulators, gas diffusers, contact tips, collets, collet bodies, welding torch bodies, welding torch back caps