Grinding wheel /grinding stone Abrasive:A ,WA,PA,,GC Grit NO.:46#, ... ..GC are suitable for aluminum,copper,cast iron and stone..WA and PA are suitable for stainless steel and ... kok ,groove ,globoidal,cone,such as special surface grinding cutting ,repaire.but also a varity of metal materials processing,clean ... ,chamfering,precious stones ,jade processing abrasive polishing. Grinding stone /grinding wheel