High Quality A-Serious Impact Glass Beads Roundness: 80% Index Refraction: 1.5-1 ... round,transparent High Quality A Series High Impact Glass MicrospheresThis product is suitable for high Pressure sandblasting ... in die-casting, metal frog-ing, extrusion of glass, rubber and plastic.b. To debar flashing ... during overhaul.f. To peen all types of glass and parts of integrated components of textile machine ...