Observing glass beads under a microscope
Fine-grained glass microbeads cannot see their unique circular state with the naked eye, but can only be seen under a microscope and roughly see their circularity.
40 mesh solid glass beads with a rounding rate greater than 85%
40-mesh glass beads with a rounding rate greater than 80%
200 mesh solid glass beads
hollow glass beads
325 mesh glass beads with a rounding rate greater than 90%
FROM:HS glass beads
