The Youyiguan Scenic Area is located in Pingxiang City, Guangxi. It is one of the top ten famous customs in China's history. It is also the only gateway in the historical customs. The 322 National Road Terminal passes through the arch gate of the Youyiguan and is connected to the Vietnamese highway. The Friendship Pass is the largest and most important customs defense on the border between China and Vietnam. The mountains on both sides stand tall, the situation is steep, the pass is stuck on the canyon passage, and the three words of friendship are written by Marshal Chen Yi.