These are marks on the sides of merchant ships to denote the greatest depth to which they may be safely loaded under various conditions, in accordance with the Ministry of transport regulations.
Ezi zimpawu ezisecaleni kwiinqanawa zezorhwebo ekuthobeni ubunzulu obukhulu apho zinokuthi zilayishwa ngokukhuselekileyo phantsi kwememeko ezahlukeneyo, kwizehlo ezimithetho yezothutho esuka kuMphathiswa.