Electric arc cutting apparatus; Electric arc welders; Electric arc welding apparatus; Electric arc welding machines; Electric soldering apparatus; Electric welding machines; Electrodes for welding machines; Gas-operated welding machines; Gas welding guns; Gas welding machines; Laser welding machines; Soldering apparatus, electric; Soldering apparatus, gas-operated; Soldering blow pipes, gas-operated; Soldering lamps; Welding apparatus, gas-operated; Welding electrodes; Welding generators; Wel...