... with low assay of Ti, Mn, Zn, Cu, V, Zr, Cr, L AluminaAlumina(industry grade) made by slkali-lime sintered,It is ... crystal with low assay of Ti, Mn, Zn, Cu, V, Zr, Cr, Li, Pb, B, P, etc.It is used in ... crystal with low assay of Ti, Mn, Zn, Cu, V, Zr, Cr, Li, Pb, B, P, etc.ApplicationEletrorefining aluminium, corundum eramics ...