The glass bead is transparant/clean/colorless/smooth , spherically shaped, free from milkiness, pits, or excessive air bubbles and conform to the following specific requirements. Material of bead is clear and colorless, commercial grade soda lime glass cullet that has been cleaned to remove any opaque particulate and other matter that may interfere with the reflective properties of the bead. We can produce all standard road marking glass beads. +gb/t 24722-2009 +ksl2521 +jis3301 +aashto m247 +bs6088 +en1423/1424 +ttb1325 +as2006:2009 +brazil +high brightness