1. High order chromatographic bridging technique and three types of nano materials block harmful blue-ray and keep beneficial blue-ray
2. Up to 35% blue-ray blocking rate 3. Lightweight durable and shock resistant |
|
1. High order chromatographic bridging technique and three types of nano materials block harmful blue-ray and keep beneficial blue-ray
2. Up to 35% blue-ray blocking rate 3. Lightweight durable and shock resistant |
|