After the death of the second-generation escort of Hui You Escort Agency, some people thought that Hui You Escort Agency had no successor, so they encouraged Jiangnan Wulin experts to come to Beijing for a competition. Threatened to close down the escort agency. At this time, Yang Yuting, a famous "iron shoe" in the south of the Yangtze River, came to Hui You Escort Agency with a big iron bar on his shoulder and asked to meet the escort head. Because of his rude remarks, Wang Lanting was angered and competed with him on the spot, and was handed out by Wang Lanting as "Master III". Yang Yuting admitted defeat and immediately bowed in front of Sun Liting's door. Later, he became a member of a friend escort agency.

Huang San artillery hammer was jointly created by the fourth generation Song Mailun and Julian Deng. 1846, Song Mailun went to Beijing, where Huang San's cannon was invented. Later, Julian Deng died, and his six sons went to Beijing to join the army and worshipped at the door of Song Mailun's house. That's the story of their "king of fighters Song". Yumen valve is the only heir of Song and Yu schools. Huang San, a school in Beijing, was told by the threshold. During my stay in Beijing, many disciples were handed down by hand. Most of them gather in Dashilan, jewelry market, Xiheyan, meat market, overpass and Yongdingmen outside the front door. Famous disciples include Wang Fuquan, Chen Youqing, Liu Desheng and Hou Jinkui.

They all inherited the art industry of Huiyou Escort Agency, and cooperated with the "Four Pavilions" to defend the bustling commercial center outside Qianmen, which played an important role. Until the 1940s, some banks, firms and big traders in Beijing also asked the guards of Huiyou Escort Agency to guard them.