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Disadvantages of tempered glass
Advantages: high performance. Compared with ordinary flat glass with the same thickness, the impact resistance is improved by more than 5 times; The bending resistance is 3 to 4 times greater than that of ordinary glass. Good thermal stability. The tolerable temperature difference is about 1 10 degrees. Good security. When it is broken, there will be net cracks first, and then it will become fine obtuse particles, with smooth edges and corners, which will not cause great harm to human body and is safer than ordinary glass.

Disadvantages: Tempered glass cannot be cut and processed twice, so the glass must be processed into the required shape before tempering. Although the strength of tempered glass is stronger than ordinary glass, the internal nickel sulfide is easy to change state after a period of time, which leads to the possibility of self-explosion of tempered glass when the temperature difference changes greatly. The surface of tempered glass will be uneven with slight thickness change. So tempered glass can't be used as a mirror.