glass beads for road marking

1) Product Function
    Reflective glass beads can improve the retro-reflection property of the road marking line. Driving at night, the headlights shines on the road marking line with glass beads, the light of headlights is reflected back parallelly. so the driver can see the road ahead clearly, and drive safely at night.
2) Product Specification:
   JT/ T446-2001 No.1, 2, 3;
   KSL 2521 No.1 and 2;
   BS6088 Class A and B;
   AASHTO M247 type 1 and type 2;
   EN1423 and EN1424;

   TS EN1423;
   AS/ NZS2009: 2002;
   CNS; JIS R3301; Australian Standard A,B,C,D.
   According to the client's request.
3) Technical information,
   Appearance: Clean, transparent, no obvious impurity
   Composition: Soda lime glass
   Density: 2.4-2.6g/cm3
   Refractive index: 1.51-1.64
   Roundness:  80% (600< Sieve size< 850um,spherical beads>80%)
   Content SiO2 >68%
   Hardness (Moh's): 5-7