O le alumina enaena ua fa'afefiloi e faia i le bauxite maualuga le tulaga e fai ma mea mata, anthracite ma fa'aputuga u'amea. E faia i le fa'a'asu'iina o le arc i le vevela e 2000°C pe sili atu. E nutililiiina ma fa'apalasitikaina e ala i le masini olo e ia lava, filifilia fa'amaneta e aveese ai le u'amea, fa'amamāina i ni lapopo'a eseese, ma e mafiafia ma malo lona foliga. O pellets maualuga ma lapotopoto, e talafeagai mo le gaosiga o le seramika, resin abrasive e tete'e maualuga ma le oloina, fa'apulusaina, fa'apa'u oneone, fa'apala sa'o, ma isi mea, e mafai fo'i ona fa'aaogaina e gaosia ai ni refractories maualuga le tulaga.
| Talosaga | Fa'amatalaga | Fa'asologa autu o vaila'au% | Mea fa'amaneta% | ||||
| Al2o3 | Fe2o3 | Sio2 | Tio2 | ||||
| Mea fa'apala | F | 4#-80# | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | ≤0.05 |
| 90#—150# | ≥94 | ≤0.03 | |||||
| 180#—240# | ≥93 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.02 | ||
| P | 8#—80# | ≥95.0 | ≤0.2 | ≤1.2 | ≤3.0 | ≤0.05 | |
| 100#—150# | ≥94.0 | ≤0.3 | ≤1.5 | ≤3.5 | ≤0.03 | ||
| 180#—220# | ≥93.0 | ≤0.5 | ≤1.8 | ≤4.0 | ≤0.02 | ||
| W | 1#-63# | ≥92.5 | ≤0.3 | ≤1.5 | ≤3.0 | --------- | |
| Tete'e i le vevela | Duansha | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | --------- |
| 25-0mm 10-0mm 50-0mm 30-0mm | ≥95 | ≤0.3 | ≤1.5 | ≤3.0 | --------- | ||
| Pauta | 180#-0 200#-0 320#-0 | ≥94.5 ≥93.5 | ≤0.5 | ≤1.5 | ≤3.5 | --------- | |
Mea e olo ai: Uili olo, fusi olo, pepa olo, ie olo, fasi mea e tipi ai, tekinolosi e fa'apa'u ai oneone, olo, fola e tete'e i le ofuina, tipiina o le vai, mea e olo ai ua ufi, mea e olo ai ua fa'aputuina, ma isi mea fa'apena.
Mea e le mafai ona fa'a'ofuofu: E mafai ona fa'a'ofu, piliki e le mafai ona fa'a'ofuofu, mea e fa'apipi'i ai, laulau fa'ase'e, au'au, ladle, mea e fa'a'ofu ai, fa'a'ofuofu sa'o, ma isi
Fa'ata'ita'iga fa'aoga mo le alumina enaena ua fa'afefiloi
Afai e iai ni au fesili. Fa'amolemole fa'afeso'ota'i matou.