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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 Feasibility study, advisory service, analysis Research, testing and scientific technical simulator Control, safety or signalling equipment for parking facilities Command, control, communication systems Supports Foundation work for highways, roads, streets and footpaths Construction work for highways, roads Electricity, heating, solar and nuclear energy Control, safety or signalling equipment for port installations Command, control, communication and computer systems Pressure-reducing, control, check or safety valves Information systems Other services Analytical, scientific, mathematical or forecasting software package Control, safety or signalling equipment for roads Electricity Postal orders Designs Control, safety or signalling equipment for airports

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Automobiles and Auto Parts Non-Renewable Energy Supply Renewable Energy Energy Postal and Courier Services Roads and Highways-Bridge Printing and Publishing Services Railways-Rail-Railroad Defence and Security Electricity Construction Consultancy Energy-Power and Electrical Computer Hardwares and Consumables Steel Aviation Marine