| 3 | Equipment for cargo |
| 309 | Common hydraulic oil system for hatches/ports |
| 35 | Loading/discharging systems for liquid cargo |
| 354 | Loading/discharging systems in cargo tanks |
| 37 | Gas/ventilation systems for cargo holds/tanks |
| 375 | Blow-off syst. from safety valves (pressure/vacuum valves) |
| 442 | Tools/equip. for engineers, electr., boatswains, carpenters |
| 477 | De-gaussing plants |
| 513 | Other internal doors w/coamings |
| 57 | Ventilation, air-conditioning, heating systems |
| 6 | Machinery main components |
| 601 | Diesel engines |
| 651 | Motor aggregates |
| 7 | Systems for machinery main components |
| 70 | Fuel systems |
| 71 | Lube oil systems |
| 72 | Cooling systems |
| 73 | Compressed air systems |
| 75 | Steam, condensate, feed water systems |
| 79 | Automation systems for machinery |