355 | Loading/discharging systems for lpg/lng in gaseous phase |
37 | Gas/ventilation systems for cargo holds/tanks |
445 | Garbage disposal plants, incinerators |
558 | Laundry, ironing and drying equipment |
57 | Ventilation, air-conditioning, heating systems |
734 | Instrument air supply systems |
75 | Steam, condensate, feed water systems |