Introduction: yanliang district, xi City, Shaanxi Province is located in the hinterland of Guanzhong Plain, 50 kilometers away from the downtown of Xi. The total area is 240 square kilometers /244.4 square kilometers. The total population is 240,000 (2003). Postal code of District People's Government: 7 10089. Administrative division code: 6 10 1 14. Area code: 029.