Sandblasting garnet size:20/40 30/60 80 120 150mesh package:25kg/bag 40bags/bulk bag Sand ... , oxidation, skin, or dirty sand-blasting, surface roughness 50-75,60-95 micron80mesh120meshAluminum, stainless steel, alloy metal, glass, ceramic, stone, wood ... only matte effect or need to remove surface rust, mill scale, dirt, etc.150meshThe restoration of ancient buildings, metal, glass and ...