... :2000 Excellent after-sales OEM Blue CBN grinding paste for metal engraving1.Good lubrication,cooling performance2.Grit size:8-123. ... with diamond fine powder and cubic boron nitride (CBN) micro powder and other raw materials, fine made from for grinding and ... , easy row cutting, high grinding efficiency, slightly corrosion of metal.Glass, ceramics, jewels, agate etc hard brittle materials products ...