Tempered glass Specification: Thickness: 3 - 19mm, Min size 150x150 mm or Diameter 20mm, Max size 2400 x 5100mm Standards: GB/T 9963-1998 AS/NZS 2208-1996 EN 12150 JIS R 3206-1989 BS 6206 Introduction: 1. The mechanical strength redoubled 4-5 times strength than ordinary annealed glass. 2. Breakage hurts reduced: when breakage occurs, the tempered glass disintegrates into countless even small obtuse fragments, which reduces its hurts to human body. 3. It can withstand a very wide range of rapid temperature changing with the endurance of 200-300c. It is widely used for glass door, buildings, exhibiton cabin etc if you are interest in our glass, please contact with us as soon as possible. plz sent us: hisinoglassalina(at)hotmail.com hope we can make a long-term business relationship with your firm