California-What is the working principle of the magnetic polishing machine?

California-The Guangu magnetic polishing machine uses the power of a magnetic field to guide the magnetic grinding steel needle to quickly rotate to polish and clean the surface of the workpiece to achieve efficient removal of burrs (batch front), surface polishing, brightening and cleaning, and deoxidation. , Removal of sintering marks, rust, and welding spots and other grinding and polishing effects