11
Apparatus, machines and installations for steam generating and heating purposes, industrial furnaces, namely heat-treating furnaces, blast furnaces, smelting furnaces for non-ferrous metals and apparatus and installations used in the thermal industry, namely apparatus for producing thermal energy for heating, cooling, steam generating, cooking and smelting purposes
37
Building construction, repair, apparatus maintenance and installation services, machinery and installations for steam generating and heating purposes, industrial furnaces, namely heat-treating furnaces, blast furnaces, smelting furnaces for non-ferrous metals and other apparatus in connection with the thermal industry
42
Consultancy relating to building construction and drafting of plans for the construction of apparatus, machinery and installations in the thermal industry, scientific and technological services and research and design relating thereto and in particular in connection with the thermal industry; Industrial analysis and research services and in particular in connection with the thermal industry; Engineering and technical project studies in connection with the thermal industry