Steel City Profile: Steel City, Laiwu City, is a new county-level district after Laiwu was upgraded to a prefecture-level city in 1993. It has 4 towns, 1 economic development zone and 164 villages (residential) with a total population of 235,591, including 100,000 non-agricultural population. The total area of ​​the district is 339 square kilometers, the mountainous area covers more than 80%, and the cultivated area is 130,000 mu.