grinding

Grinding is a process in which various types of abrasive grains are used and various surface qualities are obtained in order to obtain a high quality and smooth surface.
 In order to process the surface with these abrasive grains, the abrasive grains are tightly attached to the rotating discs. 
While these abrasives can be used to treat metal surfaces, they can also be applied to fibrous layers, 
paper and even fabric using different abrasive materials. Crushed diamonds called Aluminum Oxide, 
Silicon Carbide or Bort can be used as abrasive grains.