Ventilation Regulation and Administration of Communications Plumbing Highway Automotive Parts Construction Highway Investigation Regulation and Administration of Communications Agriculture Plumbing Highway Ventilation Construction

Transmission, cam- and crank- shafts Petroleum products, fuel, electricity and other sources of energy Diesel fuel Gases Construction work for pipelines, communication and power lines, for highways, roads, airfields and ra... Construction, foundation and surface works for highways, roads Wells construction work Fuels Heating works Construction work Diesel fuel (0,2) Electricity, heating, solar and nuclear energy Goods used in construction Architectural, construction, engineering and inspection services Heating, ventilation and air-conditioning installation work Designs Parts of fuel, hand and concrete pumps Gas pipelines

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Civil Works Automobiles and Auto Parts Non-Renewable Energy Supply Oil and Gas Law and Legal Printing and Publishing Cement and Asbestos Products Defence and Security Construction Energy-Power and Electrical Computer Hardwares and Consumables Steel Aviation Petroleum Products Construction Materials