They are obtained by bonding abrasive particles with resin. According to the characteristics of the abrasive, it is in the order with the magnesite granite abrasive group.
Velox Abrasives (Frankfurt Type).Since the surface of this group of abrasives is porous, the cleanliness of the polishing water is very significant.
We should not apply high pressure during the polishing process unless necessary and not store it in watery and humid environments.