silicon carbide abrasive nylon flat brush 1.DuPont Tynex A U.S.A. technology 2.Grit load:30%. 3.Nylon 612 Fickert abrasive nylon ... sold far Europe,Asia,Middle East and so on Grit load 30% Grit typesilicon carbideFilamentDuPont tynex® AFilament Colorgray/blackStandard packing12pcs/cartonGrainSteel,Steel ... 46# ,60#,80#,120#,180#,240#,320#,500#.MachinesCraft pictures silicon carbide abrasive nylon brush