... process, it is particularly used for surface preparation applications(2)≥53-60HRC:With this hardness,Newly made bearing ... ,more sharp for cutting, cut fast, and make the marble with a more smooth surface. Comparison for bearing steel ... elements is lessStructureForge State, Tough StructureCast StateShapeAngular Angular with some Sphere arcProduction skillBearing steel crushed, double quenchingFused ...