33.20.Z - Installation of industrial machinery and equipment and outfit
33.12.Z - Repair and maintenance of machinery
33.13.Z - Repair and maintenance of electronic and optical equipment
33.14.Z - Repair and maintenance of electrical equipment
33.19.Z - Repair and maintenance of other equipment
42.12.Z - Works related to construction of railways and underground railways
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.29.Z - Other construction installation
43.99.Z - Other specialised construction activities not elsewhere classified
62.02.Z - Computer consultancy activities
62.03.Z - Computer facilities management activities
62.09.Z - Other information technology and computer service activities
71.20.B - Other technical testing and analysis
