1Al2O3 99% 2NAO 0.3% 3Fe2O3 0.1% 4Hardness(mohs) 9 5 Ture density 3.9 White aluminium oxide/white fused alumina( ... #,1200#,1500# 2000#,2500#,3000#,4000#Refractory grade:1-0mm,3-1mm,5-3mm,5-8mm -200mesh,-240mesh,-320mesh PurposeSpecificationChemical Composition(%)Magnetic material ... to start business cooperation with us.. Refractory White Fused Alumina 1-0mm.3-1mm.5-3mm