1. Material: 0.4mm CSG high aluminum glass + 330AB glue
2. Craftsmanship: large arc 120CC chamfer, 48 degree super large arc surface
3. Anti-peep glue: 28 degree century chemical anti-peep glue
4. Fingerprint oil: electroplating super smooth fingerprint oil
5. 4H tempered reinforcement, strong shock and explosion resistance, no fear of falling