Product Description Ceramic plate is made of alumina ceramic as raw material, and then by extrusion and high temperature calcination. The plate is calcined at the same time with quartz sand material, so it can increase the strength and hardness of the ceramic plate, its weather resistance is very strong, but also has the characteristics of sun resistance, acid rain corrosion resistance, the surface of the ceramic plate and cutting edge are not need to add protective layer. Ceramic plate can also be made of zirconia ceramic, High-frequency porcelain and steatite ceramic,it is very widely used.