glass beads for road marking (BS 6088 B)
Category: Industrial Safety Equip.
1)Appearance: Clean, apparent, no obvious impurity
2)Reflection Index: 1.5-1.61, 1.90-1.93, 2.20
3)Gravity: 2.4-2.6g/cm3 SiO2 content > 62%
4)Composition: Sodium lime glass composition
5)Round...