It's cut by puncher from reinforcing netlike fiberglass cloth for grinding wheel. The cloth was coated with phenolic resin and epoxy resin. then baked and punched. The features of this product include low margin of error in siz, high in concentricity, trim side and etc. The netlike piece is widely used as the basal material of grinding wheel which adops resin as adhesive agent. The
grindingwheel which is made with this basal material has properties of excellent heat resistance, cutting at high speed and great structural strength.