... from F12 to F3000 3,manufacturer4, refractory,abrasives,grinding material,polishing compound 1.DescriptionBlack silicon carbide is produced at ... iron, non-ferrous metal, rock, leather, rubber, etc. It is also broadly used as refractory material and metallurgical additive.2. ... , non-ferrous metal, rock, leather, rubber, etc. It is also broadly used as refractory material and metallurgical additive#14# ...