To make this high intensity safe glass, ordinary glass is heated up to its softening point, then aircooled sharply. And if curve toughened glass is made, special mould must be used to get the curve surface. Toughened glass is 4 or 5 times stronger than ordinary glass in anti-curve intensity, anti-impact intensity and heat stability. Also,toughened glass is char-acterized by it safety. This kind of glass that can become grains is comby shape even after it's crushed, So that harm to human body can be avoided. Because of the advantages stated above, toughened glass has been widely used for Fench window,glass door,large glass partition,glass wall,glass furniture,daylighting ceiling, automatic lift,safe fence,interior bathroom,automobile,ship and train and so on. straight toughened glass:max size:2000*5000mm min size:250*100mm thickness:3mm-19mm