Introduction to the golden guardrail: The newly replaced "golden guardrail" is made of high-strength special stainless steel. The built-in hinge can ensure that the guardrail "bends without falling apart" when it is impacted by the outside world, thus greatly improving the protection performance. . As of August 2015, "golden guardrails" have been used in important places such as Tiananmen Square, the city tower, Jinshui Bridge, Chairman Mao Memorial Hall, the Great Hall of the People, Zhongnanhai entrance and exit, and the first line of Chang'an Avenue.