GRH mamanu ma gaosia le eletise, orbit afi, pamu eletise / masini afi, mono-poloka valve, va'a fa'aputuga vaega, va'a fa'atatau ma vaeluaga tafe . O vaega nei e masani ona fa'aaogaina i masini tau pisinisi, fa'aogaina o mea, masini faufale, fa'ato'aga ma fale gaosi oloa. fanua.