... supply high quality product, good service . white fused alumina powder size F220 to F1500, for refractory: sand in group size :0-1mm ... , 0-3mm, 0-5mm,0-10mm, 0-25mm ApplicationCoated Abrasives Surface treatmentCeramic TilesAnti-Skid Paints Model: WA Chemical compositions Physical ... Usage Sandblasting content of magnetic substance0.0023%max... WFA ,whtie brown fused alumina for grinding wheel, al2o3