... Chemical Composition(%) Grit SizeAl2O3TiO2SiO2Fe2O3CaOMgOF4-F8095.0-96.0 2.0-3.8 0.9 0.150.35 0.5F90-F15094.5-95.5F180- ... F22093.5-95.5F200 Finer≥92.001.50-3.80≤0 ... .45 Refractory sizes: Model :0 ... Size Available: Abrasives F12-F1200,P12-P2500Refractory 0-1mm,1-3mm,3-5mm,5-8mm,200mesh ...