It is the process of holding glass group and decorative glass at a certain temperature and then cooling. Tempered glass is 10 times more durable than normal glass. Tempered glasses are also used as safety glass. Nowadays, door windows, table and coffee table glass, railing glasses, facade windows, balcony windows, glass balcony windows, office windows, such as the use is quite wide. Tempered glass; it does not hurt when broken. With the explosion of air inside the glass is broken into small pieces to provide security. 10 times more resistant to surface impacts.