July 23 around 15 o'clock, yanqing district the Badaling Wildlife Park, a tiger maulings occurred caused one death and one injury, which causes a heated debate on the Internet. Differernt people have diffferent opinions. Some people say that is the cause of MS, no zuo, not death. While others say Zoo regulation is not in place. Whatever the reason, the result is inevitable, that casualties have become a reality. This happens every year, when we were in danger, who is paying the price for our security, is responsible for our lives, this is the primary factor to be considered.Security fence is a new type of building security product. It collects safe, beautiful, practical, and many other advantages.