The current trend towards an increase in the number of types - both the basic and the variants - reflects the tendency to match the cargo ships to the increasingly differentiated and specific requirements of their users, the shippers.
Intsingiselo yangoku ngokwanda kwinani lentlobo-ntlobo, zombini isiseko kwakunye neentlobo-ntlobo zibonakalisa isiqhelo zokuthelekisa inqanawa zemithwalo kwezongezelelekileyo nezahluka-hlukeneyo ezinemfuneko ethe ngqo zabasebenzisi bazo, abantu abalungiselela iimpahla ezizakulayishwa enqanaweni.