6
Metal, non-electric cable, wires and wire ropes; metal pipes, tubes and fittings; non-electric cables, wires and wire rope made primarily of metal; pipes, tubes and fittings therefor made primarily of metal; cable joints for non-electric cables made of metal and primarily of metal
9
Electric cables and wires and accessories therefor, namely, plastic caps for sealing ends of electric and non-electric cables and wires, insulated electrical connectors, couplers, electric plugs; splicing accessories, namely join boxes and fiber patches; optical fibers and related accessories, namely optical waveguides, optical conductors, otical fiber cables, otical ground wires and otical plugs
37
Installation, maintenance and repair of electric, non-electric and high-voltage cables and wires and fiber optic cables and wires, construction of high voltage lines
41
Educational and teaching services, namely seminars and workshops in the field of installation, maintenance and construction of electric lines, namely high voltage lines
42
Technical consultation in the field of electric lines, namely high voltage electric lines; planning of installation of non-electric cables and wires