A total of 3,040 establishments were involved in the production of fabricated structural metal in 1997.
There are 17,507 workers involved.
According to the U.S. Census Bureau's Statistics of U.S. Businesses, 628 establishments operated in this category for part or all of 2001.
Stamping out shapes from sheet metal is a common practise in such businesses as the car industry, and in many other manufacturing processes.
In 2001, Houston-based Suncoast Post-Tension LP led the industry with sales of $62 million on the work of 300 employees.
Cottage industry meant many households created goods for sale in the markets. Heavier manufacturing usually involved mills powered by river water, or used furnaces to heat metal
By 100 B.C. the use of iron as a semi-structural material was recognized.
By 100 B.C. the use of iron as a semi-structural material was recognized.
Industry sector is a category of businesses (industry) like metal businesses, oil businesses, financial businesses, etc.
NAICS Code 339911 (Jewelry (including Precious Metal) Manufacturing)
aluminium
Metal alloys are primarily created by being heating, melting and blending, then allowed to cool and harden. This is common in alloy manufacturing plants.
If your question is about the structural frame of the building then it is steel