72.19.Z - Other research and experimental development on natural sciences and engineering
28.11.Z - Manufacture of engines and turbines, except aircraft, vehicle and cycle engines
28.21.Z - Manufacture of ovens, furnaces and permanent household heating equipment
28.29.Z - Manufacture of other general-purpose machinery n.e.c.
35.11.Z - Production of electricity from non-renewable sources
71.12.Z - Engineering activities and related technical consultancy
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
74.10.Z - Specialised design activities
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
