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Construction work for pipelines, communication and power lines, for highways, roads, airfields and ra... Control, safety, signalling and light equipment Construction, foundation and surface works for highways, roads Control, safety or signalling equipment for inland waterways Control, safety or signalling equipment for parking facilities Command, control, communication systems Foundation work for highways, roads, streets and footpaths Construction work for highways, roads Control, safety or signalling equipment for port installations Command, control, communication and computer systems Library, archives, museums and other cultural services Pressure-reducing, control, check or safety valves Control, safety or signalling equipment for roads Administration, defence and social security services Control, safety or signalling equipment for airports

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