3313 Repair of electronic and optical equipment

33.13.1 Repair and maintenance services of electronic and optical equipment
33.13.11 Repair and maintenance services of instruments and appliances for measuring, testing and navigation
33.13.12 Repair and maintenance services of irradiation, electromedical and electrotherapeutic equipment
33.13.13 Repair and maintenance services of professional optical instruments and photographic equipment
33.13.19 Repair and maintenance services of other professional electronic equipment