The high-quality glass is heated to about 650 ℃, and then rapidly cooled, so that the glass surface is in a highly compressed state (and compressive stress) and the middle part maintains a compensating force (ie, tensile stress). This surface compressive stress can resist various tensions that cause glass to break, and double the mechanical strength of the glass. Compared with ordinary glass, its impact force, bending resistance, and temperature difference resistance are increased by 3-5 times, and the broken After that, the glass fragments are in the form of pure angular particles, which avoids damage to the human body to the greatest extent, so tempered glass is a legal safety glass.

Specifications: arc length 3.66 meters * height 3.3 meters and arc length 2.44 meters * height 6 meters.