SiLiBeads® S-type Soda Glass Beads, Mixed-sizes, PbO-Free!, Solid, from Φ0.00~0.05 mm to Φ3.8~4.3 mm for Road Marking Reflection Beads / Dispersing-Media for all Pearl Mills / Beads for the Surface Coating, etc, Size 혼합형 글라스 비드