71.121Level 571.12Engineering activities and related technical consultancy71.12101Design and realisation of projects relating to electrical and electronic engineering; mining, chemical, mechanical and industrial engineering, systems engineering, security techniques, etc.71.12102Industrial design71.12103Development of projects involving acoustic engineering, air conditioning, refrigeration, sanitation and pollution control, etc.71.12104Elaboration of projects involving activities relating to civil or structural engineering, hydraulic engineering and traffic engineering71.12105Geological activities and prospecting: observation and surface measurements to collect information on underground structure and location of oil, natural gas, mineral and groundwater deposits71.12106Geodetic survey activities: hydro graphic, underground, boundary survey; mapping and geographic data collection activities, including aerial photography, etc.71.12111Activities of construction economists