33.12.Z - Repair and maintenance of machinery
17.29.Z - Manufacture of other articles of paper and paperboard
25.53.Z - Machining of metals
25.61.Z - Manufacture of cutlery
25.62.Z - Manufacture of locks and hinges
28.49.Z - Manufacture of other mechanical tools
33.14.Z - Repair and maintenance of electrical equipment
33.20.Z - Installation of industrial machinery and equipment
43.21.Z - Electrical installation
71.12.B - Other activities in the field of engineering and related technical consulting
71.20.C - Other technical research and analyses
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
85.59.B - Courses and training related to acquiring knowledge, skills, and professional qualifications in non-school forms
95.22.Z - Repair and maintenance of household appliances and home and garden equipment