Amplifiers; electrical adapters; audio- and video-receivers; batteries, electric; cables, electric; cinematographic cameras; chips [integrated circuits]; circuit closers; circuit breakers; coaxial cables; collectors, electric; electric apparatus for commutation; compact discs [audio-video]; compact discs [read-only memory]; compact disc players; computer memory devices; computer peripheral devices; computer hardware; computers; condensers [capacitors]; conductors, electric; connections for electric lines; connectors [electricity]; control panels [electricity]; converters, electric; copper wire, insulated; couplings, electric; data processing apparatus; disk drives for computers; distribution boxes [electricity]; distribution boards [electricity]; distribution consoles [electricity]; DVD players; electricity conduits; materials for electricity mains [wires, cables]; fibre [fiber (Am.)] optic cables; connections, electric; fuses; head cleaning tapes [recording]; headphones; heat regulating apparatus; high-frequency apparatus; holders for electric coils; horns for loudspeakers; identification threads for electric wires; identification sheaths for electric wires; inductors [electricity]; integrated circuits; fuse wires of metal alloys; intercommunication apparatus; interfaces for computers; inverters [electricity]; laptop computers; lasers, not for medical purposes; integrated circuit cards [smart cards]; limiters [electricity]; locks, electric; measuring apparatus; measuring devices, electric; measuring instruments; memory cards for video game machines; lightning conductors [rods]; modems; monitoring apparatus, electric; monitors [computer hardware]; notebook computers; printed circuits; printed circuit boards; printers for use with computers; readers [data processing equipment]; record players; lightning arresters; mobile telephones; solar batteries; solar panels for the production of electricity; sound transmitting apparatus; sound recording apparatus; sound reproduction apparatus; sound locating instruments; sounding apparatus and machines; speaking tubes; spectrograph apparatus; step-up transformers; surveying apparatus and instruments; switchboards; switchboxes [electricity]; switches, electric; tablet computers; tape recorders; telephone receivers; telephone apparatus; telephone transmitters; telephone wires; television apparatus; material testing instruments and machines; testing apparatus not for medical purposes; terminals [electricity]; transformers [electricity]; transistors [electronic]; transmitters of electronic signals; transmitters [telecommunication]; transmitting sets [telecommunication]; USB flash drives; vacuum tubes; video screens; video recorders; voltage surge protectors; wire connectors [electricity]; wires, electric; USB cables; Data transmission cables; cell phones; cellular phones; sockets, plugs and other contacts [electric connections]; Power cables; Ethernet cables; Ethernet Switches; XLR cables; RCA cables; BNC cables; Ethernet routers; HDMI cables; audio and video transmission cables

Magnetization; metal plating; metal treating; metal tempering; metal casting