electrical equipment; namely, contact lines, aerial lines fittings, masts for contact lines and outdoor lighting, current collectors, cables and wires, traffic lights for traffic control

Building elements of metal for vehicle thoroughfares, namely, steel masts, poles of metal for power lines, metal pipes, metal castings, castings, foils, powder, and rolled, drawn or extruded semi-finished articles of copper or its alloys, copper wire, not insulated, castings, foils, powder, and rolled, drawn or extruded semi-finished articles of aluminum or its alloys, stainless steel pipes, metal railway crossovers, cable stretchers and cincture stretchers of metal, cable thimbles of metal, ...