Product Details
Bullet-proof glass is made of more different thickness of the film transparent float glass and many pieces of PVB film with scientific combination. Protection levelBallistic performanceGlass ThicknessGlass DensityNIJ IIIA.44 Magnum20mm51kg/ m29mm FMJNIJ III7.62x51mm NATO(M-14)5.56x45mm M193/SS109/M855(M16)7.62X39mm (AK47)39mm84kg/ m2NIJ IV7.62x63mm AP7.62x54mm API52mm118kg/ m2Machine gun12.7mm AP99mm240kg/ m2 Standard:GB17840-1999<<Bullet-proof Glass>> Chinese National Standard .