1.Material:Aluminium Oxide,Zirconia Oxide,Silicon Carbide
2.Cover of Backing: Resin reinforced fiber cloth
3.Raw material of ring: Stainless steel
4.Packing:cardboard box/blister/color box/clam shell
5.Advantage:
1). Hard & Durable and easy grinding disc, with high stock and long life.
2).European standard