We manufacture and supply the following products: Grinding Wheels Series: diamond grinding wheels, CBN grinding wheels, Honing Tools Series: honing sticks/honing stones,honing mandrels,honing heads, Superhard Coated Abrasives Series: sanding belts, abrasive flap discs, abrasive wheels, Optical Glass Processing Tools Series: various grinding wheels and diamond pellets. If you are inter... https://www.reddit.com/user/KeatonParker/comments/16sctz4/classification_of_grinding_wheels_how_to_use/