SYNTHETIC GRINDING STONE Yoshida, Yuji
Feb 18, 2010· 3. The synthetic grinding stone of claim 1, wherein salts as a filler is a metal salt consisting of inorganic acid and inorganic base 4. (canceled) 5. The synthetic grinding stone according to claim 1, wherein particle size of the graphite cluster diamond is from 50 angstrom(Å) to 300 Å.