| 14 | Work on ways, launching, docking |
| 17 | Ship repair, special services |
| 20 | Hull materials, general hull work |
| 381 | Sounding, surveil. and operating equipment for cargo systems |
| 40 | Manoeuvring machinery, equipment |
| 408 | Dynamic positioning systems |
| 41 | Navigation, searching equipment |
| 411 | Radar plants |
| 412 | Decca, loran, omega, radio direction finder |
| 413 | Gyro plants, autopilots, compasses |
| 417 | Clocks, facsimile recorders, misc. nautical equipment |
| 42 | Communication equipment |
| 43 | Anchoring, mooring, towing equipment |
| 542 | Office equip. and spec. furniture in wheelh., chart and radior. |
| 79 | Automation systems for machinery |
| 88 | Electric cable installation |