arc welders, power sources for arc welders; consumable and non-consumable arc welding electrode wires and rods; electrode wire feeders and dereelers; controllers for arc welders; electrode feed controllers and gas flow controllers for gas shielded arc welding; cable assemblies for arc welding; electrode holders; consumable and non-consumable arc welding electrodes; arc stabilizers; electrical cables and leads; protective clothing; namely, helmets, face screens, goggles, spectacles, leather ap...