... .3,NO 4,Hairline surface grinding finishing polishing brushing machines for polishing the surface of metal No.3,NO 4, ... belts or brushesDouble Ridged rubber-coated hold-down rollers for each belt or brushWet or dry working style optionalContact ... steel polishing machine, metal buffing machines,finishing machines,NO.4,hairline,metal surface finishing machines,oil stainless steel finishing machine,wet ...