Grinding wheel /grinding stone Abrasive:A ,WA,PA,,GC Grit NO.:46#,60#, ... iron..GC are suitable for aluminum,copper,cast iron and stone..WA and PA are suitable for stainless steel and ... in a wide variety of metals and non-metalic grinding carving processing ,or used within the park ,park kok ,groove , ... ,parts,chamfering,precious stones ,jade processing abrasive polishing. Grinding stone /grinding wheel