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Construction work for pipelines, communication and power lines, for highways, roads, airfields and ra... Analytical, scientific, mathematical or forecasting software development services Control, safety, signalling and light equipment Construction, foundation and surface works for highways, roads Control, safety or signalling equipment for inland waterways Research, testing and scientific technical simulator 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 Analytical, scientific, mathematical or forecasting software package Control, safety or signalling equipment for roads Dental cryosurgical, gauges, elevators and excavators Control, safety or signalling equipment for airports

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