Electric arc welders; Electric arc welding apparatus; Electric arc welding machines; Electrodes for welding machines; Gas-operated welding machines; Gas welding guns; Gas welding machines; Laser welding machines; Metal welding machines, namely, saws and cutters; Soldering apparatus, gas-operated; Soldering blow pipes, gas-operated; Soldering lamps; Welding electrodes; Welding machines, electric; Welding torches