What is the difference between water-selected silicon carbide and air-selected silicon carbide?

What is the difference between water-selected silicon carbide and air-selected silicon carbide?
Water separation of silicon carbide is to distinguish different types of silicon carbide by controlling the pressure of water. This production process is more complicated, and the particle size of the produced silicon carbide powder is more concentrated without large particles. Customers will not use it during the grinding and polishing process. The workpiece is scratched.
Wind separation of silicon carbide is to distinguish different types of silicon carbide by controlling the wind speed. The silicon carbide powder produced by this process has a wide particle size distribution, and it is easy to mix large particles in it. Therefore, if the customer uses it for polishing and grinding, it may be scratched. Injury workpiece