33 Repair and installation of industrial machinery, equipment and tools
- 331 Repair of industrial machinery, equipment and tools
- 3311 Repair of fabricated metal products
- 3312 Repair of industrial machinery and equipment
- 3313 Repair of electronic optical devices
- 3314 Repair of industrial electrical machinery and equipment
- 3315 Repair of ships and boats
- 3316 Repair of aircraft and spacecraft
- 3317 Repair of other transport equipment
- 3319 Repair of other industrial equipment
- 332 Installation of industrial machinery and equipment