... ~1000 mesh abrasive particles such as silicon carbide, alumina, and diamond grinding dust. The hot melts from the above are extruded ... ~1000 mesh abrasive particles such as silicon carbide, alumina, and diamond grinding dust. The hot melts from the above are extruded ... ~1000 mesh abrasive particles such as silicon carbide, alumina, and diamond grinding dust. The hot melts from the above are extruded ...