Jiangyou: Jiangyou is a county-level city under the management of Mianyang City. It is located in the northwestern part of the Sichuan Basin, upstream of the Minjiang River, southeast of the Longmen Mountains, 33 kilometers from Mianyang and 130 kilometers from Chengdu. The city covers an area of ​​2,719 square kilometers. It is a subtropical humid monsoon climate with an average annual sunshine of 1367 hours, an average annual rainfall of 1100 mm, an annual frost-free period of 280 days, and an annual average temperature of 16.2 °C. Jiangyou is dominated by flat dams and hilly landforms, and Jiangzhang Plain is the largest plain in the country. Jiangyou City is an important commodity grain base, energy base, metallurgical base and building materials base. The city size of Jiangyou City ranks among the top ten cities in Sichuan (including prefecture-level cities).