... 1.Type:Frankfurt 2.Grit:24#~800# SpecificationsGranite,Marble,Travertine Steel Abrasive Brush 1.Type:Frankfurt 2.Grit:24#~800# 3 ... #, 46#, 60#, 80#, 120#, 180#, 240#, 320#, 500#, 800# and steel filament;FilamentDupont Tynex A from USA, Hahl from Germany and ... local material etc.ApplicationAutomatic grinding machine, Hand grinding machine, Arc Slab machine.