Mukugadzirwa kwemagirazi emazuva ano, kuwana girazi rakafanana uye rakanatswa kwakakosha pakushandiswa kwerunako uye kushanda zvakanaka. Alumina chena yakasanganiswa ine grit 180 yave kushandiswa senzira yekukwesha girazi nekuda kwekugona kwayo kucheka zvakanaka uye kupararira kwezvidimbu zvidiki.
Neavhareji yehukuru hwema microns angangoita 80–90, alumina chena yakasanganiswa ine grit 180 inopa mhedzisiro inogara yakanyorova pasina kukonzera kukuvara kwakanyanya pamusoro. Kuchena kwayo kwakanyanya (≥99% Al₂O₃) uye simbi shoma zvinoita kuti pasave nekuchinja kweruvara kana kusvibiswa kunoitika panguva yekuputisa, zvichiita kuti ive yakakodzera zvakanyanya magirazi ekuvaka, ekushongedza, uye epamusoro-soro emaindasitiri.
Magadzirirwo emakona echinhu chinocheka zvinhu zvishoma (angular particles morphology) anoita kuti zvikwanise kuchekwa zvakanaka, zvichibvumira vashandisi kuti vapedze zvakanaka uye vakaenzana zvakanaka. Zvichienzaniswa nezvinotsvedza zvakanyanya, 180 grit inopa kunatswa kwepamusoro-soro, zvichiita kuti ive yakakodzera kushandiswa senge magirazi panels, mashower enclosures, ma partitions, uye etching ye logo chaiyo.
Pamusoro pezvo, kuoma kwayo kwakanyanya (Mohs 9) uye kuramba kwayo kupfeka zvakasimba zvinobatsira pakugara kwenguva refu uye kugona kudzokorodza, zvichideredza mari yekushandisa. Kana ikashandiswa mumamiriro ezvinhu akagadziriswa—kazhinji pakumanikidzwa kuri pakati pe0.4–0.7 MPa uye makona ekuputisa akakodzera—180 grit white fused alumina inoita kuti ishande zvakanaka uye ive yemhando yepamusoro.
Sezvo kudiwa kwemagirazi epamusoro-soro kuri kuramba kuchikura, alumina chena yakasanganiswa ine grit 180 ichiri mhinduro yakavimbika kune vagadziri vari kutsvaga kunyatsojeka, kugara kwenguva refu, uye kushanda zvakanaka mumabasa ekuputika kwejecha.