Dongguan bright electronic arts and crafts business department   

High refractive index of reflective glass beads (reflective powder) reflective powder for high refractive glass beads, according to the refractive index can be divided into ND = 1.90, ND = 1.93, ND = 2.2 three, can also according to the special products, raising or lowering the refractive index, product specifications from the 100 order -500 order to provide scalable. Color can be divided into white and silver two. Reflective powder product characteristics: reflective material with high refractive index glass beads coated aluminum as the second half of retro reflector, with retro reflectivity performance is very strong, can directly reflect the light back to the source 85%, reflective brightness caused regression of reflection, can make the driver