Articulated chains and tubes made of plastic for receiving and guiding energy conductors; spacers made of metal or plastic for dividing receiving spaces for the chains and the tubes; guide channels made of metal or plastic for the chains and the tubes; strain relief clips, comb strips with cable binders, protective hoses made of plastic, connection fittings for protective hoses, in particular distributors, hexagon counter-nuts, sealing caps, system holders, securing straps, pipe clamps, end closures, and screw connections; carriers made of metal and plastic for the movable end of the articulated chains and the tubes, as well as parts of such carriers; electrical cables and conduits, glass fiber optical lines, insulating material for electrical cables and conduits, electrical conduit material, electrical cable and conduit connectors; fastening clips and clamps made of plastic for electrical cables and conduits; connectors and connecting elements for electrical conduits; optical waveguides; components for shielding against electromagnetic waves; protectors for electrical tubes; plastic signs for writing upon, sockets for receiving plastic signs; labels not made of textile materials; self-adhesive foils, signs made of metal; inscribing devices for plastic signs; plotters, engraving machines; software for inscribing devices for plastic signs and labels, not made of textile materials; cable feed-through strips made of plastic; and rubber sockets