28.91.Z - Manufacture of machinery for metallurgy
16.29.Z - Manufacture of other products of wood; manufacture of articles of cork, straw and plaiting materials
17.29.Z - Manufacture of other articles of paper and paperboard
22.29.Z - Manufacture of other plastic products
28.21.Z - Manufacture of ovens, furnaces and furnace burners
28.25.Z - Manufacture of industrial cooling and ventilation equipment
28.41.Z - Manufacture of metal forming machinery
28.49.Z - Manufacture of other mechanical tools
28.92.Z - Manufacture of machinery for mining, quarrying and construction
28.96.Z - Manufacture of machinery for working rubber or plastics and for manufacture of the articles from these materials
28.99.Z - Manufacture of other special-purpose machinery not elsewhere classified
33.12.Z - Repair and maintenance of machinery
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
71.12.Z - Engineering activities and related technical consultancy
72.19.Z - Other research and experimental development on natural sciences and engineering
