130700。 China Post official website Enquiry, Yitong Manchu Autonomous County, postal code 130700, belonging to Siping City, Jilin Province. Because the seven volcanoes in the territory are arranged in the shape of the Big Dipper, and the mountains and rivers are beautiful, there are many talents in history. It is known as the "seven-star blessed land" and was once listed as the second batch of national agricultural product quality and safety counties.