Blades for power saws; Electric arc cutting apparatus; Electric arc welding apparatus; Electric welding machines; Electric wet grinders for welding electrodes; Electrodes for welding machines; Gas-operated soldering irons; Gas-operated welding machines; Gas cutting guns; Gas welding guns; Laser welding machines; Soldering irons, gas-operated; Soldering lamps; Welding machines, electric; Welding torches