FACOTORY DIRECTLY OFFER AND WHOLESALE Glass Bead for Grinding1) Description: With the advantages of smooth surface, even size, high hardness, wearable and stable, widely used as disperser, grinding media and filler materials in day, paint, ink and chemical industry.2) Technical references: A: Appearance: Clean and transparent, no visible bubbles and impurity. B: Specific gravity: 2.4-2.6g/cm3C: ...