Goulusheng (13689377024) is one of the outstanding businessmen (dentists) in the Roman market. Up to now, we have been engaged in mule-horse trading for more than 30 years, purchasing mules and horses for customers in dozens of cities in Yu Sheng, including Henan, Hebei, Shanxi, Shandong, Anhui, Beijing, Jiangxi, Zhejiang and Sichuan. After the success of the transaction, the mule and horse market in Yan Guan gradually became famous all over the country. Especially since the reform and opening up, the market has developed rapidly and changed greatly. The source of livestock has expanded from the original neighboring areas to Qinghai, Ningxia, Shaanxi, Henan, Sichuan and other provinces. Subsequently, it was widely sold in Gansu and Shaanxi, Sichuan, Shandong, Shanxi, Anhui, Henan, Liaoning and other places. In recent years, with the continuous development of various economic and social undertakings, the county party Committee and government of Lixian county regard market construction as an important way to benefit the county economy for the people, develop and revitalize it. Vigorously cultivate and build the market and gradually improve the market facilities. Since 1993, more than 400,000 employees have been invested to open a professional market for salt officials and mules and horses, covering an area of 40 mu (26,700 square meters). The trading environment has been reformed and the functional departments have strengthened market management. Give full play to the role of brokers, make market transactions increasingly active, and enhance throughput and radiation. At present, the trading volume of Yan Guan mule and horse market has reached 6,543.8 billion yuan. It has become one of the larger mule and horse markets in the northwest of China. Yan Guan's mules and horses attract customers from all over the world because of their good colors, tall heads, great strength and gentle temperament. At every gathering, large livestock flock from all directions, including mules and horses that can be used as servants and riders, cows and donkeys that can keep horses, fat meat animals and elderly animals that can't be used as servants. The variety is complete and the transaction is convenient. At the same time, Yanguan takes livestock as the leader and mule market as the support, forming a commercial system integrating breeding, processing, purchase and sale, and integrating production, supply and marketing, which promotes the development of local economy. Nowadays, the salt official mule market appears on the land of Longyuan with a brand-new look, and the ancient salt official mule market shines brightly.