Repair and installation of machinery and equipment Standard Industrial Classification (SIC) codes of UK-based importers and exporters 33110 - Repair of fabricated metal products (2234) 33120 - Repair of machinery (6599) 33130 - Repair of electronic and optical equipment (1338) 33140 - Repair of electrical equipment (7209) 33150 - Repair and maintenance of ships and boats (3179) 33160 - Repair and maintenance of aircraft and spacecraft (3794) 33170 - Repair and maintenance of other transport equipment n.e.c. (5251) 33190 - Repair of other equipment (8621) 33200 - Installation of industrial machinery and equipment (6282)