Brown Fused Alumina Fine Powder 320F/220F Brown Fused Alumina is utilised within the refractory industry for the manufacture of high alumina fired ... F500, F600, F800, F1000, F1200, F1500 Usages: grinding media, sandblasting media; surface cleaning, grit blasting, lapping, polishing ... , grinding, sandblasting, etching wet and dry blasting mineral skin ...