Bullet-proof glass is made scientifically by combination of clear float glass of different thickness with multi-layers PVB film. In order to strengthen the security performance of the bullet-proof glass, glass thickness and PVB thickness have been increased. Because of the strong sticking of the glass with the PVB film, the hit by metal can only crush but not penetrate the glass; therefore the bulletproof security effect is obtained. Benefits 1.Anti-shock, anti-penetration and good safety; 2.Good sound insulation and heat insulation; 3.Strong uvioresistant; 4.Durable and fadeless. Specification Glass thickness: 3~19mm; Interlayer film thickness: 0.38~3.04mm for PVB; 1.52mm and 3.04mm for SGP; Max. Size: 2440mm�6000mm. Applications:  Bank; Securities company; Counter of jewelry shop; Treasure counter ofmuseum and art shop; Viewport of explosion-proof apparatus;Door and window of prison.