Bullet-proof glass is composed of multi-layer glass and films, which has special bullet resisting power. Different levels of bullet-proof glass can obstruct bullet from piercing through the glass or small broken glass flying and causing personal injury. It is widely used for counters of banks and jewelry shops, banknote carrying vehicles and other places with particular safety protection requirements. It is a kind of small broken glass flying and causing personal injury. It is widely used for counters of banks and jewelry shops, banknote carrying vehicles and other places with particular safety protection requirements