... as good thermal conductivity and quick heat dissipation.♦ Black silicon carbide is produced in an electric resistance furnace from quartz ... glass, china. ♦ Ceramics, resin, rubber grinding wheel, refractory material.♦ Sandblasting, dry grinding, free grinding as well as cutting and making jewelry, jade ... , agate. ♦ Grinding of gray cast iron, white cast iron, bronze, ...