... :Float glass+PVB film+PC sheet Ballistic glassAccording to (NIJ0108.01,UL752,ASTM1233,BS5051,DIN52290,UN19187)Structure:Float glass+PVB film ... performanceGlass ThicknessGlassDensityNIJ IIIA.44 Magnum20mm51kg/ m29mm FMJNIJ III7.62x51mm NATO(M-14)5.56x45mm M193/SS109/M855(M16)7.62X39mm (AK47 ... API52mm118kg/ m2Machine gun12.7mm AP99mm240kg/ m2 Ballistic glass (NIJ 0108.01,ASTM1233)