... : componentZrO2(wt%)Y2O3(wt%)Al2O3Fe2O3SiO2TiO2properties94.80±0.205.2±0.20<100ppm<50ppm<450ppm<50ppmcomponentNa2OK2OCaOMgOCl-BET() Specific Surface AreaParticle size D50 ... .0, Φ6.5, Φ7.0 Φ8.5, Φ10, Φ12, Φ15, Φ20, Φ25, Φ30, Φ40, Φ50, Φ60 RollingΦ8.0, Φ10 Φ8.0 ... Φ9.7*9.7 Φ12.7*12.7 Φ15*15 Φ20*20 *New molds are needed for making other non-standard grinding ...