Even if the Laminated Glass is broken, the fragments will be glued to the film, and the broken glass surface will remain clean and smooth. This effectively prevents the occurrence of debris puncture and penetration incidents, and ensures personal safety. In Europe and America, most of the building glass adopts laminated glass, not only to avoid injury accidents, but also because sandwich glass has excellent seismic invasion capability. The middle membrane can resist the continuous attack of hammers, chopsticks and other lethal weapons, and also can withstand hard penetrations for a long time. Its security level is very high. The glass breaks down safely and can be broken under the impact of the heavy ball, but the whole glass remains an integral interlayer, and the fragments and the sharp small fragments still stick together with the middle membrane.