Electric arc cutting apparatus; Electric arc welders; Electric arc welding apparatus; Electric arc welding machines; Electric welding machines; Electric welding machines for metalworking; Electrodes for welding machines; Gas-operated welding machines; Gas-operated welding torches; Laser welding machines; Metal welding machines, namely, saws and cutters; Welding apparatus, gas-operated; Welding machines, electric; Welding torches; Wire welding machines