The glass or glass products through physical or chemical means, and the glass surface layer permanent stress uniformly distributed, 4mm tempered glass, thereby obtaining a processing method of high strength and high thermal stability is called tempered glass. The glass is heated to a certain temperature, and then the glass in accordance with the requirements of rapid cooling rate, so that the glass have a great permanent internal stress, the mechanical properties can be greatly improved silicate glass, tempered glass windows, this approach called glass physical steel (or hardening). Tempered glass is safety glass. Tempered glass is a kind of prestressed glass, 12mm tempered glass, to enhance the strength of the glass, usually using chemical or physical methods, the glass surface compressive stress is formed, the first offset surface stress, Qingdao toughened glass to withstand external forces, thus improving carrying capacity, reinforcing the glass itself wind pressure resistance, cold and heat resistance, impact resistance, etc. Glass factory, Texas tempered glass, Yaohui preferred by Jinan Glass Co., Ltd. Yaohui. Jinan Yaohui Glass Co., Ltd. (www.jyhhc.com/) strong, credible, in Jinan, Shandong architectural glass industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Yaohui into the brilliant glass and you work for a better future!