Federal Specification TT-B-1325D Type 3 (Type III) high index reflective glass beads have become the FAAs glass bead of choice for airport runways.
Federal Spec TT-B-1325D Type 3 Airport Glass Beads
Glass bead - Jewelry
Standard DOT - AASHTO Reflective Glass Beads 50 Pound
Swarco Reflex Airport Quality Grade B T-11 Coated Reflective Glass
Road Reflective Marking Glass Beads for Traffic Paint - China Road
Glass bead - Jewelry
Glass bead - Jewelry
REFLECTIVE GLASS BEADS 3 Mm for Textured Design on Enameled
Cole Safety Products Standard DOT AASHTO Reflective