This kind of glass beads have stable chemical durability and high mechanical strength,that is why it is used for blasting and polishing. Size from 44um to 850um can be chosen based on your need.

References

Appearance: clean and transparent,no visble bubbles and impurity.

Density: 2.4-2.6g/cm3

Hardness: 6-7(moh's)

Sio2: >72%

Roundness: ≥90%

Purpose

Different size of glass beads can be used for

mold/forging/glass/rubber/plastic/metal-casting/metal

extrusion press/metal-clean/surface polishing field 

Standard