silicon carbide grinding stones are an easy-to-use, cost-effective solution for grinding concrete floors to prepare the surface for various coatings. They range from 6- to 120-grit to help ...

The problem facing anyone tackling the manufacture of a flat surface is that by using a tool on a piece of material, be it one stone rubbed against another, a plane on a piece of wood, or a file ...

A grinding stone and grain residue found within ... the stone had a smooth, worn surface that was slightly bowl-shaped and a flat bottom, suggesting it was heavily used. In all, these discoveries ...