O le ipu alumini e masani ona vaevaeina i ituaiga e lua:
1. E tusa ai ma le tuʻufaʻatasiga o mea faʻapipiʻi:
Pepa alumini mama maualuga (taavale mai alumini mama maualuga ma mea i luga ole 99.9)
Pepa alumini mama (fa'atatau i le alumini mama ta'avale)
Pa'u alumini alumini (fa'apipi'i alumini ma mea fa'aopoopo, e masani lava alumini kopa, alumini manganese, alumini silikoni, alumini magnesium, ma isi)
Pepa alumini tu'ufa'atasi po'o ipu fa'apa'u (mea fa'apitoa ipu alumini mea e maua mai i le tu'ufa'atasiga o mea e tele)
Pepa alumini fa'apipi'i alumini (pepa alumini e ufiufi i le pepa alumini manifinifi mo fa'amoemoega fa'apitoa)
2. Vaevae i le mafiafiaiunite mm)
pepa alumini (pepa alumini) 0.15-2.0
ipu masani (pepa alumini) 2.0-6.0
Medium plate (alumini ipu) 6.0-25.0
ipu mafiafia (papa alumini) 25-200 ipu mafiafia sili atu nai lo le 200