... 12-220 240-1200 #12-1200 1..Chemical and physical Usage:JIS#10-JIS#240(1)It ... great hardness material, such as the high speed steel, stainless steel and high carbon steel.(2)It also usually ... used for sandblasting, such as precious metal, the gold, crystal, the glass and ... 1,1-3,3-5,5-8mm and 180,200,240,280,320F Bacmac Aluminium Micropowder Brown Fused Alumina