1.Content of Silicon carbide: Sic 65%, 68%, 70%, 72% 2.Size: 30mm x 60mm according to your requirement 3.low content of Sulfu Silicon carbide refractory ball mainly uses in the electricity gas stove and the furnace cupola, as the deoxidizer, and uses in the casting and the steel-making industry (special steel, stainless steel, T system iron, G system iron, factories and so on K system iron all ...