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Diesel fuel Construction work for pipelines, communication and power lines, for highways, roads, airfields and ra... Control, safety, signalling and light equipment Sections Construction, foundation and surface works for highways, roads Control, safety or signalling equipment for inland waterways Structural works Wells construction work Safes Heating works Control, safety or signalling equipment for parking facilities Construction work Command, control, communication systems Diesel fuel (0,2) 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 Other services Control, safety or signalling equipment for roads Goods used in construction Architectural, construction, engineering and inspection services Postal orders Heating, ventilation and air-conditioning installation work Control, safety or signalling equipment for airports

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Civil Works Building Environment and Pollution-Recycling Automobiles and Auto Parts Non-Renewable Energy Supply Postal and Courier Services Roads and Highways-Bridge Infrastructure Law and Legal Printing and Publishing Services Travel and Tourism Construction Consultancy Energy-Power and Electrical Computer Hardwares and Consumables Steel Petroleum Products Building Material Marine