Laminated glass is composed of two or more pieces of glass and one or more layers of organic polymer sandwiched between them. After special high temperature prepressing (or vacuuming) and high temperature and high pressure process, the glass and the intermediate layer permanent bonding composite glass products. Even if the glass breaks, the fragments stick to the film, and the broken glass surface remains neat and smooth. Compared with other glass, it has impact resistance, anti-theft, bulletproof, explosion-proof and other performances, can effectively prevent explosion.