... It can be used to grind welding seams,debarring,removing rust,removing paint and polishing fiber disc Material : Aluminium Oxide,Silicon ... Carbide, Zirconium Oxide Application: Be used for removing rustfrom metal and nonmetal surface, grinding melding seams, polishing ... It can be used to grind welding seams,debarring,removing rust,removing paint and polishing by installed to the electric or ...