Neidong Street Store. Baoning Town is the political, economic, cultural and transportation center of Langzhong. National Highway 212 runs through the town from north to south and meets Provincial Highway 32, covering an area of 34.5 square kilometers. According to the information of this place, the vinegar sold by Neidong Street Store in this place is authentic, made of the most advanced technology and high-quality raw materials, with good quality, good taste and cheap price, which is bought by many people.