Glass Beads is produce by Tianjin Gangde Industrial and Trade CO.,Ltd, which is a factory with very strong real strength, and the product is numerous. A section of this company has been started to produce road mark line using reflection beading since 2002, which its company has passed ISO 9001 and 14001 attestations, Korean KSL2521 standard attestation, the attestation of EU CE. That company can produce product matching international standard