Common grinding materials include:

1. 
   

   Grinding wheel: A disc-shaped grinding tool used for grinding hard materials such as metals and stones, typically mounted on a grinding machine.

3. 
   

   Grinding belt: Belt-shaped grinding material used for flat grinding and removing material over larger areas.

5. 
   

   Sandpaper: Paper or cloth with abrasive particles, often used for hand sanding small areas or curved surfaces.

7. 
   

   Grinding brick: Small rectangular grinding tool used for hand grinding and polishing.

9. 
   

   Grinding stick: Small rod-shaped grinding tool used for hand grinding and polishing.

11. 
    

    Abrasive block: Specialty grinding material, such as diamond abrasive blocks, used for grinding super hard materials.

When choosing grinding materials, it is important to select the appropriate ones based on specific application requirements and grinding objectives.

For complex or critical grinding tasks, seeking advice from professionals is recommended to ensure the selection of suitable grinding materials and tools.