Where are the traditional industrial areas of the United States mainly located

The industrial system of the United States to heavy industry is absolutely dominant. U.S. industry in the regional distribution is very uneven, mainly concentrated in the northeastern region. Northeastern industrial area of the United States is the first European immigrants to develop the place, but also the earliest development of capitalism in the United States. Here has coal mining, steel, machinery manufacturing and other heavy industrial sectors, the national steel, automotive, chemical and other industries are mostly distributed in this area, here, known as the United States of America's "manufacturing belt".