... brushing machines for polishing the surface of metal No.3,NO 4,Hairline surface grinding finishing polishing brushing machinesMain ... nozzle pipes when maintenanceMain applications:It is suitable for NO.3, NO.4, Hairline, Scrotch-brite brush finishing or ... belt sanding machines,abrasive polishing machine,manufacturer,producer,prices.I No.3,NO 4,Hairline metal surface grinding finishing polishing ...