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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 Pressure-reducing, control, check or safety valves Other services Control, safety or signalling equipment for roads Rails Control, safety or signalling equipment for airports

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Automobiles and Auto Parts Supply Light and Lighting Products Roads and Highways-Bridge Printing and Publishing Services Railways-Rail-Railroad Electricity Construction Energy-Power and Electrical Computer Hardwares and Consumables Industry