China's first bullet proof glass since 1997, high security glass against AK47,Auto Bulletproof Glass (ASTM F1233 Standard) Auto Bulletproof Glass (ASTM F1233 Standard) Bullet proof glass is essentially a high standard of security glass, by laminating layers of glass, PVB, PU, SGP, PC and other materials, to provide high security against rifle bullets.HingWah is the first company that worked out ...