1. Chemical components: SiO2, Al2O3, NaO, B2O3, MgO, CaO, Fe2O3, T1O2

2. Size (mm):0.8-1.2;1-1.5; 1.5-2; 2-2.5; 2.5-3; 3-3.5; 3.5-4; 4-4.5; 4.5-5; 5-6; 13-14;
                    15-16; 19-20

3. Physical performance: Density 2.8g/cm3; Hardness：>700kg/mm2; Compressive Strength：>3400kg/cm2

4. Speciality: Stable chemical performance, resist corrosion, resist fatigue, low abbrasion and high strength.

5. Application: i. Clear and polish small or big metal part, gold, siliver and diamond; Restore the cleanliness of the object, while maintaining accuracy; for    sandblast, increasing the hardness of the surface of objects ii. Widely used in muller and ball grinders; Applied in painting, ink, rubber, pestiside and pegment industry. iii. Also used for energy-saving lamps with glass ball, glass ball sprayers various perfume bottles, air pistols, decorations and for other purposes

 6. Quality Standard: Transparent and clear outlook, without air bubble and impurities.