Fitexcasting o se gaosiga faʻapolofesa o oloa hydraulic na faʻatuina i Saina.O loʻo faʻagaioi le kamupani i le fanua o hydraulics: faʻatau, auaunaga, mamanu ma le fausiaina o faiga tutusa.

O loʻo faʻatupuina e le matou fale gaosi le saoasaoa maualalo, maualuga maualuga o masini eletise eletise, iunite faʻataʻitaʻi ma faʻauʻu eletise, lea e masani ona faʻaaogaina i masini inisinia, masini faʻatoʻaga, masini eli ma faigafaiva ...