-Testing, measurement, analysis and control
-Primary education and training, organizing courses, training, including teaching activities
-Provision of technical services
-Surface treatment and welding of metals and other materials
-Production of measuring, testing, navigation, optical and photographic instruments and equipment
-Manufacture of electronic components, electrical equipment and manufacture and repair of electrical machinery, apparatus and electronic equipment operating at low voltage
-Manufacture of machinery and equipment
-Manufacture of medical devices
-Production and repair of ionizing radiation sources
-Wholesale and retail trade
-Maintenance of motor vehicles and their accessories
-Design of electrical equipment
Installation, repair, inspection and testing of electrical equipment
Transportation, purchase, sale, rental and storage of weapons and ammunition
Providing services in the field of safety and health at work