Nrog rau kev ua si dej thiab kev ua si ua si, cov nkoj ua si tau dhau los ua thawj qhov kev xaiv rau ntau dua thiab ntau cov neeg siv khoom vim lawv cov ntaub ntawv tshwj xeeb. Aluminium tsis tsuas yog muab lub nkoj ib lub teeb pwm tab sis kuj ua ke lub zog thiab kav ntev kom tau raws li cov dej uas xav tau. Txawm hais tias rau tsev neeg kev lom zem lossis kev ua haujlwm tshaj lij, cov nkoj txhuas muab cov neeg siv khoom ruaj khov thiab muaj kev nyab xeeb.
Cov nkoj nrawm muaj ntau cov kev siv hauv ntau thaj teb vim lawv qhov kev ua tau zoo, hloov pauv tau, thiab ntau ntau yam. For example, leisure and entertainment, maritime sports, sightseeing tourism, fishing, marine rescue, military use, and scientific research exploration.
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