... rust clearance)(2) Clear of surface (dirt reduce, oil relieve)(3) Finishing of surface(Mill, gloss marking ,polish)2:Selection for ... clearance)(2) Clear of surface (dirt reduce, oil relieve)(3) Finishing of surface(Mill, gloss marking ,polish)2:Selection for ... effective is not very satisfied.TORSION-STRING FLAT BRUSHES (Flat Brush Twisted Wire) Applying of industrial brushes1:Industrial brushes used ...