Spot copper price trend in Guangzhou June 21, 2017
This kind of glass beads are processed from special glass raw-materials. The refractive index is between 1.57 and 1.60. Its` reflective performance is superior to those glass beads adopted from architectural glass with same roundness and particle size. And the roundness and particle size can be customized according to requirements.
The glass bead can be produced based on the standard of countries or areas, such as EN1423/1424, AASHTO M247, BS6088, JIS R3301 and KS L2521 etc.
S-Brilliance Glass Beads,Screen Materials Glass Beads,Twinkling Glass Beads For Road Safety,Coated Silane Large Glass Beads CHIYE GLASS BEAD (HEBEI) CO., LTD , https://www.chiyeglassbeads.com
Spot copper price trend in Guangzhou June 21, 2017