| 33120 | General mechanical maintenance and repair of machinery (manufacture) |
| 33120 | Repair and maintenance of accounting machinery (manufacture) |
| 33120 | Repair and maintenance of agricultural machinery (manufacture) |
| 33120 | Repair and maintenance of agricultural tractors (manufacture) |
| 33120 | Repair and maintenance of cash registers (manufacture) |
| 33120 | Repair and maintenance of commercial-type general purpose machinery (manufacture) |
| 33120 | Repair and maintenance of compressors (manufacture) |
| 33120 | Repair and maintenance of construction machinery (earth moving type) (manufacture) |
| 33120 | Repair and maintenance of construction machinery (except earth moving type) (manufacture) |
| 33120 | Repair and maintenance of earth-moving and excavating equipment (manufacture) |
| 33120 | Repair and maintenance of engines and turbines (except aircraft, vehicle and cycle) (manufacture) |
| 33120 | Repair and maintenance of equipment for concrete crushing and screening and roadworks manufacture) |
| 33120 | Repair and maintenance of fluid power machinery (compressors) (manufacture) |
| 33120 | Repair and maintenance of fluid power machinery (pumps) (manufacture) |
| 33120 | Repair and maintenance of forestry and logging machinery (manufacture) |
| 33120 | Repair and maintenance of furnaces and furnace burners (manufacture) |
| 33120 | Repair and maintenance of gas turbines (manufacture) |
| 33120 | Repair and maintenance of general purpose machinery n.e.c. (manufacture) |
| 33120 | Repair and maintenance of industrial process furnaces (manufacture) |
| 33120 | Repair and maintenance of industrial refrigeration equipment, air purifying equipment (manufacture) |
| 33120 | Repair and maintenance of industrial type air conditioning (manufacture) |
| 33120 | Repair and maintenance of lifting and handling equipment (manufacture) |
| 33120 | Repair and maintenance of lifting, handling equipment, elevators, moving walkways etc. (manufacture) |
| 33120 | Repair and maintenance of lifts and escalators (not in buildings or civil engineering) (manufacture) |
| 33120 | Repair and maintenance of machinery for bookbinding (manufacture) |
| 33120 | Repair and maintenance of machinery for food, beverage and tobacco processing (manufacture) |
| 33120 | Repair and maintenance of machinery for metallurgy (manufacture) |
| 33120 | Repair and maintenance of machinery for mining (manufacture) |
| 33120 | Repair and maintenance of machinery for paper and paperboard production (manufacture) |
| 33120 | Repair and maintenance of machinery for printing (manufacture) |
| 33120 | Repair and maintenance of machinery for textile, apparel and leather production (manufacture) |
| 33120 | Repair and maintenance of machinery for working rubber or plastics (manufacture) |
| 33120 | Repair and maintenance of marine engines (manufacture) |
| 33120 | Repair and maintenance of metal cutting or metal forming machine tools and accessories (manufacture) |
| 33120 | Repair and maintenance of metal working machine tools (manufacture) |
| 33120 | Repair and maintenance of non-domestic cooling and ventilating equipment (manufacture) |
| 33120 | Repair and maintenance of non-domestic machinery for drying wood, paper pulp, etc. (manufacture) |
| 33120 | Repair and maintenance of office machinery (other than computers) |
| 33120 | Repair and maintenance of oil and gas extraction machinery (manufacture) |
| 33120 | Repair and maintenance of other machine tools (except metal working) (manufacture) |
| 33120 | Repair and maintenance of other machine tools (metal working) (manufacture) |
| 33120 | Repair and maintenance of papermaking machinery (manufacture) |
| 33120 | Repair and maintenance of photocopy machines (manufacture) |
| 33120 | Repair and maintenance of plastic and rubber working machinery (manufacture) |
| 33120 | Repair and maintenance of pumps (manufacture) |
| 33120 | Repair and maintenance of railway diesel engines (manufacture) |
| 33120 | Repair and maintenance of reprographic machinery |
| 33120 | Repair and maintenance of special purpose machinery n.e.c. (manufacture) |
| 33120 | Repair and maintenance of steam turbines (manufacture) |
| 33120 | Repair and maintenance of taps (manufacture) |
| 33120 | Repair and maintenance of valves (manufacture) |
| 33120 | Repair and maintenance of vending machines (manufacture) |
| 33120 | Repair and maintenance of weighing equipment (manufacture) |
| 33120 | Repair of calculators (manufacture) |
| 33120 | Repair of gearing and driving elements (manufacture) |
| 33120 | Repair of other power-driven hand-tools (manufacture) |
| 33120 | Repair of typewriters (manufacture) |
| 33120 | Repair of valves for machinery (manufacture) |
| 33120 | |