1 Water softening preparations, water purifying preparations.
6 Pipes and tubes of metal.
9 Telephone apparatus, modems, computers, radiotelephony sets, telephone transmitters; electric accumulators; cables and fibres for the transmission of sound and images.
11 Apparatus for filtering water, for softening and purifying water, water distribution installations; incinerators, electric heating apparatus, solid, liquid or gaseous fuel heating apparatus.
17 Flexible pipes, not of metal.
19 Rigid pipes, not of metal.
35 Organization of exhibitions for commercial or advertising purposes; telephone answering services; dissemination of advertising matter, transcription of communications; newspaper subscription.
36 Capital investments.
37 Installation and repair of water supply systems, water treatment systems and irrigation devices; cleaning of buildings and structures; disinfecting; public works; factory and bridge construction; road paving, damp-proofing; installation and repair of heating apparatus, air conditioning apparatus, electric apparatus, furnaces, refrigerating apparatus; insulating services; telephone installations and repair.
38 Telecommunications, communications by telephone, radio, fibre optic networks, computer terminals; paging services (radio or telephone), electronic mail, cellular telephone communication, satellite broadcasting, information about telecommunications, rental of telecommunications apparatus, modems, facsimile machines, telephones; dissemination of television programmes, radio and television broadcasting; cable television broadcasting.
39 Water supplying, water distribution; transport by air, land and boat, transport brokerage, information concerning transport; energy distribution and electricity distribution.
40 Water treatment and purification, waste treatment, destruction of waste; air deodorising, air purification and air freshening; energy production; rental of generators; material treatment information; incineration of waste, recycling of waste and trash.
41 Arranging and conducting conferences; television entertainment, film production, video tape editing, production of radio and television programmes.
42 Chemical research, bacteriological research, chemical analysis; architecture, architectural consultation, construction drafting; rental of meeting rooms and of facilities for exhibitions; sorting waste and raw materials for recycling; mechanical research, technical project studies, engineering; environmental protection consultancy.