The glass developed by a research institute in Hungary has a multi-layer structure, with extremely thin metal wires embedded in the middle of each layer. If a thief breaks the glass, the alarm system connected to the metal wire will immediately send out an alarm signal.
Sound insulation glass
A Japanese company introduced technology from Germany to manufacture a new type of sound insulation glass. This kind of glass is made of 5 mm thick soften resin to bond two layers of glass together, which can absorb almost all the noise. It is especially suitable for recording studios and broadcasting studios. Its price is equivalent to 5 times that of ordinary glass.