... Silicon Carbide 1. High purity of silicon carbide 2. Competitive price 3. Refractory material 4. Color: Black Product DescriptionBlack silicon carbide ... has been approved by the Ministry of Commerce of specialized international freight transport agents, approved ... , such as Ferro Silicon, Silicon Carbide, Silico Manganese, Rareearth Ferro Silicon Alloy, Ferro Silicon Magnesium Alloy, quality nodulizing ...