http://www.armorcn.com/bullet-....proof-glass/bulletpr Car Window factory Electrically heated bulletproof glass is a high-tech glass product with dual protection functions, bulletproof and thermal insulation. The product uses electric heating to heat the glass to a high temperature, thereby melting the metal particles in contact with the bullet, thus enhancing the protection ability. This glass is typically made of multiple layers of laminated glass with a transparent resistive wire or conductive film in the middle for transmitting electricity and heating the glass. Product Specification Product NameElectricall