BFA Brown Fused Alumina Grains 8-5-3-1-0mm Brown Fused Alumina is a dense material produced from ... in refractory applications. Grain size : 8-5mm, 5-3mm, 3-1mm, 1-0mm -8+5mm,-5+3mm,-3+1mm,-1+0mm -8/+16, -16/+30, -30/+60 ... , -30/+60 8-16, 16-30, 30 ...