Chicago is rich in mineral resources, with the total proved reserves ranking first in the United States. Chicago's main mineral reserves include coal, oil, natural gas, iron ore, potassium salt, phosphate, sulfur, etc. Other minerals include copper, lead, molybdenum, uranium, bauxite, gold, mercury, nickel, potassium carbonate, silver, tungsten, zinc, aluminum, bismuth, etc. Chicago is one of the most important economic centers in the United States. It is a leading region in steel industry, machinery manufacturing, agricultural technology, trade, culture and education. Chicago's industries are mainly steel, metal, food processing, electronics, oil processing, printing and transportation machinery and equipment industries.North America edible oil equipment product supplier Aoyo edible oil equipment Chicago internet publicity site more Chicago regional knowledge: Chicago's steel industry ranks first in the United States, with famous American Steel Company and Calais Steel Plant. edible oil equipment The manufacturer Aoyo edible oil equipment is located in Asia, bordering the Pacific Ocean, and the China-EU train runs through the country. Aoyo edible oil equipment has a service team for North America edible oil equipment customers, which can provide reliable edible oil equipment cash crop processing solutions for Chicago edible oil equipment customers!