... of materials Chilled steel, 2High-speed steel, High-carbon steel 1.silicon carbide fiber disc, has good flexibility, high Intensity and high Wear ... pieces made of materials Chilled steel, High-speed steel, High-carbon steel,Chromium corundumPAPink,rose-red Sharp cutting, good edges holdout ... metallic and Nonmetallic material, i.e. single alundum silicon carbide fiber disc