Ra:10--15nm. thickness of the PCD/CBN layer: 0.1mm, overall thickness: 0.05mm, diameter: 0.05mm. C-scanner B-scanneuses check Features of Grinding, Lapping and Polishing Service of PCD/PCBN Blanks1. The PCD/PCBN blanks are of flat surface and high quality.2. Roughness: Ra10--15nm.3. Common difference. Thickness of the PCD/CBN layer: 0.1mm, overall thickness: 0.05mm, diameter: ±0.05mm.4. The C-scanner uses a high precision nondestructive test. It is used to test the combination firmness of the PCD/PCBN layer and the tungsten carbide layer, the internal structure of the PCD/PCBN and the thickness of the PCD/PCBN layer.