tempered glass is one kind of high-strength glass that is heated to softening,then condensed quickly by cold wind with the same thickness,tempered glass's bending strength is 5-6 times as strengthfu as common glass. The most eminent advantage of tempered glass is safety, and it like honeycomb after crashing so as avoid harming. It can be widely used in skyscrapers, vehicles, automobile staircase and separation indoors etc.