Brief introduction of Wuyuan City: Luyuan City, which belongs to Loudi City, Hunan Province, is the throat of the economic corridor in Hunan Province. Wuyuan City built the county in 1951, and in 1987, the county was established. Wuyuan City governs 19 townships and 1 street, 1897 square kilometers, and 1.156 million people (2013). In 2013, Wuyuan City achieved a total production value of 20.68 billion yuan, which was 11.3% higher than the same period of last year. Luyuan City is known as “coal sea”, “hometown of building materials”, “hometown of non-ferrous metals” and “hometown of non-metals” is “National Advanced Culture City”, “National Advanced Sports City”, “National Double Support Model City” ".