fengjiexianIntroduction：Introduction to Weinan: Yinan County, in the northwestern part of Chongqing, in the Rongrong Line Corridor, the West Sichuan Economic Integration Department, the East Jiechuan District, Tongliang County, the south to the Dazu District, and the west to the Anyue County of Sichuan Province, Anju The area and the ship-mountain area are adjacent to Pengxi County and Wusheng County in the north, facing the Jialing District, with a total area of ​​1,583 square kilometers. It consists of two streets and 20 towns. The household registration of 950,000 people (the sixth census data in 2010) is the northwest window of Chongqing's opening to the outside world, and the bridgehead on the fast-track of Chengdu. Tongnan County is a Chongqing urban development new zone and a new industrial base. It is a demonstration zone for cooperation between Sichuan and Chongqing in the national Chengdu-Chongqing Economic Zone.