Specialized Freight (except Used Goods) Trucking Ventilation Regulation and Administration of Communications Plumbing Architectural Regulation and Administration of Communications International Plumbing Research and Development in the Physical General Freight Trucking Ventilation Research and Development in the Physical

Gases Engineering, auxiliary, average, loss, actuarial and salvage insurance services Heating works Electricity, heating, solar and nuclear energy Other services Heating, ventilation and air-conditioning installation work

Well engineering Case making services

Europe

Building Non-Renewable Energy Engineering Oil and Gas Printing and Publishing Cement and Asbestos Products Construction Energy-Power and Electrical Computer Hardwares and Consumables Building Material Construction Materials