List of activities classified inside the UK SIC Code 33130
- Repair and maintenance of aircraft engine instruments (manufacture)
- Repair and maintenance of professional photographic and cinematographic equipment (manufacture)
- Repair and maintenance of radiation detection and monitoring instruments (manufacture)
- Repair and maintenance of surveying instruments (manufacture)
- Repair of binoculars (manufacture)
- Repair of electronic optical equipment (manufacture)
- Repair of electronic transformers (solid state); coils, chokes, and other inductors (manufacture)
- Repair of electronic valves and tubes and other electronic components (manufacture)
- Repair of heads (pickup, recording, read/write, etc.); phonograph needles (manufacturing)
- Repair of laboratory distilling apparatus, centrifuges, ultrasonic cleaning machinery (manufacture)
- Repair of microscopes (manufacture)
- Repair of mine detectors (manufacture)
- Repair of photographic equipment (manufacture)
- Repair of prisms and lenses (manufacture)
- Repair and maintenance of pacemakers (manufacture)
- Repair and maintenance of optical precision instruments (manufacture)
- Repair and maintenance of automotive emissions testing equipment (manufacture)
- Repair and maintenance of clocks in church towers and the like
- Repair and maintenance of electrocardiographs (manufacture)
- Repair and maintenance of electromedical endoscopic equipment (manufacture)
- Repair and maintenance of electronic equipment for measuring, checking, testing, etc. (manufacture)
- Repair and maintenance of hearing aids (manufacture)
- Repair and maintenance of industrial time measuring instruments and apparatus (manufacture)
- Repair and maintenance of irradiation apparatus (manufacture)
- Repair and maintenance of magnetic resonance imaging equipment (manufacture)
- Repair and maintenance of materials properties testing and inspection equipment (manufacture)
- Repair and maintenance of medical and surgical equipment and apparatus (manufacture)
- Repair and maintenance of medical ultrasound equipment (manufacture)
- Repair and maintenance of meteorological instruments (manufacture)
- Repair of telescopes (manufacture)