It mainly use as piezoelectric crystal non-metallic materials, such as cutting, grinding, high-grade refractory materials, manufacture of engineering ceramics. Generally divided into many model: 24#，46#,60#,80#,90#,100#,120#,150#,180#,220#，600#,800, the larger the model, the finer the particle size, greater than 320 # commonly known as silicon carbide powder, it is the ideal abrasive, is widely used in the abrasive industry, the most important for the production of grinding wheel, cutting films, and so on.