26.51.Z - Manufacture of instruments and appliances for measuring, testing and navigation
26.60.Z - Manufacture of irradiation, electromedical and electrotherapeutic equipment
26.70.Z - Manufacture of optical instruments and photographic equipment
28.29.Z - Manufacture of other general-purpose machinery not elsewhere classified
28.99.Z - Manufacture of other special-purpose machinery not elsewhere classified
32.50.Z - Manufacture of medical and dental instruments and supplies
33.14.Z - Repair and maintenance of electrical equipment
33.19.Z - Repair and maintenance of other equipment
33.20.Z - Installation of industrial machinery and equipment and outfit
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
47.99.Z - Other retail sale not in stores, stalls or markets