Toughened glass is safety glass. It is through the principle of material toughening and cooling instantly when the glass is heated to the state of softening. Toughened stress layer is produced inside the glass, which increases the ability of resisting pressure and impact on the glass surface. After breaking, the size of particles and corn grains is basically harmless to human body. Generally, toughened glass does not harm to human body. It's not very straight. It's a little bent.
Ordinary glass, the surface pressure and impact resistance of the bottom, it is easy to break, after breaking any shape, most of them are sharp knife-shaped, sharp edges, have greater harm to the human body. Glass is very straight, no bending.