Walls forming a trunk leading from the boiler room to the boiler hatch, which protect the different deck spaces from the heat of the boiler room, etc.
Iindonga ezenza isiqu esiphuma kwigumbi lesibilisi ukuya kwisivalo sesibilisi esikhusela iindawo ezahlukeneyo zemigangatho kubushushu begumbi lesibilisi, njl.