... brushing machines for polishing the surface of metal No.3,NO 4,Hairline surface grinding finishing polishing brushing machinesMain features: ... nozzle pipes when maintenanceMain applications:It is suitable for NO.3, NO.4, Hairline, Scrotch-brite brush finishing or polishing, brushing ... the stainless steel/aluminum finishing and polishing, from NO.3,NO.4(coarse) to 6K(fine)Keywords: wet or dry-, ...