... b coated abrasive products such as sand paper, sand cloth, roll, sand belt, flap wheel,etc..c Vitrified bonded ... polishing application such as glass carving, rust removing, jean cloth grinding.f Wear-resistant and fire-proof products.g Friction ... various polishing application, such as glass carving, rust removing, jean cloth grindin. Typical Chemical Analysis(F24) Al2O3Fe2O3TiO2SiO2CaO95.50%0.20% ...