Difference between tempered glass and non tempered glass

The difference between the tempered glass and the non tempered glass:
1. Tempered glass has high strength and is hard to break.
2. Toughened glass is a small piece of nail which is broken after it is broken. It belongs to safety glass. Non toughened glass is sharp and big, not safety glass.
3. Non tempered glass is very smooth; tempered glass has small deformation.
4, the tempered glass has rainbow patches (special corner), non tempered glass, wear polarizing glasses observation: tempered glass has black and white patches, not steel glass.