Frankfurt Resin Bond Diamond Abrasive:-This is a smaller version of DFVRA. It is specially designed for line polishers and radial/ slab polishers.
It is vailable in the following grits:
60, 100, 200, 300, 400, 500, 600, 800, 1000, 1200, 1500, 2000, 3000, 5000, 8000, 12000.