Blast furnace is not only the main equipment for iron-making, but also the largest single industrial equipment in the world. As a modern large-scale blast furnace adopting many advanced technologies both at home and abroad, No. 5 blast furnace of Meishan Iron and Steel was put into production in June 2012, with a volume of 4,070 cubic meters and a designed annual output of 3.27 million tons of molten iron. Such blast furnace is among the best in China regarding various economic and technical indicators, and has won the title of "National Winning Furnace".