Isitena sebhalbhu ye-alumina yimveliso ye-alumina ekhanyayo eyenziwe nge-alumina ye-industrial ngendlela yokunyibilika.Izitena ezikhaphukhaphu zokugquma ezikhanyelayo ezenziwe ngebhalbhu enomgongxo zinokusetyenziswa njengeentsimbi kwiziko lobushushu obuphezulu xa zidibana ngqo namadangatye.
Yethuiipleyiti zokutyhalakwayeiminqamlezozineenzuzo zomxholo we-alumina ephezulu, umxholo wokungacoceki ophantsi, ukumelana nobushushu obuphezulu, uzinzo oluhle lokutshatyalaliswa kwe-thermal kunye nokwandiswa kwe-coefficient ephantsi.