Bolt Ventilation Regulation and Administration of Communications Plumbing Construction Turned Product and Screw Regulation and Administration of Communications International Agriculture Plumbing Machine Shops; Turned Product; and Screw Ventilation Construction

Gases Nuts Construction, foundation and surface works for highways, roads Wells construction work Heating works Construction work Electricity, heating, solar and nuclear energy Piping Goods used in construction Pipeline, piping, pipes, casing, tubing and related items Architectural, construction, engineering and inspection services Postal orders Heating, ventilation and air-conditioning installation work

Nuts District heating IP phones

Europe Northern Europe Western Europe

Civil Works Supply Postal and Courier Services Roads and Highways-Bridge Oil and Gas Printing and Publishing Electricity Construction Energy-Power and Electrical Computer Hardwares and Consumables Steel Industry Marine