Diamond black polishing compound for carbide 1.Good lubrication,cooling performance 2.Grit size:6-8 3.Passed ISO9001:2000 Diamond black polishing compound for carbide1.Good lubrication,cooling performance2.Grit size: 6-83.Passed ISO9001:2000 of CQC4. Weight/piece: 5g or 10g5. Packing/bag: 10, 15 or 20 pieces6. Smoothness: 0.1-0.057. Delivery time: within 10 days after confirmation ...