According to the Regulations on Safety Precautions in Banking Business Places (GA38-20 15) issued by the Public Security Administration of the Ministry of Public Security, the bullet-proof glass used in banking business places has the bullet-proof performance of 7.62 mm51-KLOC-0/steel-core bullets fired by 79 submachine guns, and the shatterproof performance reaches the General Technical Requirements for Anti-smashing Composite Glass (GA8448). (Zhong Ling, Hubei)