Which line city is Yanshi?

Yanshi city is a third-tier city. Yanshi city, a county-level city, is located in the south of Henan Province and belongs to Luoyang City. According to the city division standard issued by the National Bureau of Statistics, yanshi city is a third-tier city. The criteria for urban division are evaluated and divided according to factors such as city size, population, economic strength and infrastructure construction. Generally speaking, first-tier cities refer to national key cities and economic center cities, second-tier cities refer to provincial capitals and cities with relatively developed economies, third-tier cities refer to county-level cities and developing cities, and fourth-tier cities refer to cities with low industrialization and urbanization.