Our company follows this standards: UK BS.6088(A.B.C) Standard、Japan JIS—R3301(1.2.3) Standard、 USA ASTM Standard and Chinese Traffic Department JT、 T446—2001 Standard、Country Aviation Industry Standard、 AMS2431、6A and so on. They are usually used in the world. We produce kinds of Glass Beads for road and industry. Our products have passed the certificate of Traffic Project Examination Center of the Traffic Department, and get the permit certificate.
PS: We have a principle that customer is god, and we can make the plan of the adjusting the granularity’s proportion by customer’s requirement.