Alumina sib tsoo pob tau siv dav hauv cov pob zeb ua cov khoom siv abrasive rau cov khoom siv ceramic thiab cov khoom siv glaze.Ceramic, cement thiab enamel factories li zoo li cov iav iav ua kom zoo nkauj, lawv lub siab hardness, thiab lawv lub siab hnav tsis kam.Thaum lub sij hawm ua abrasive / sib tsoo, cov khoom siv ceramic yuav tsis tshua tawg thiab qhov kis kab mob tsawg heev.