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North American Industry Classification System

Subsector 331 - Primary Metal Manufacturing

 
 
3311 Iron and Steel Mills and Ferroalloy Manufacturing
 
33111 Iron and Steel Mills and Ferroalloy Manufacturing
 
331111 Iron and Steel Mills
 
331112 Electrometallurgical Ferroalloy Product Manufacturing
 
 
3312 Steel Product Manufacturing from Purchased Steel
 
33121 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
 
331210 Iron and Steel Pipe and Tube Manufacturing from Purchased Steel
 
33122 Rolling and Drawing of Purchased Steel
 
331221 Rolled Steel Shape Manufacturing
 
331222 Steel Wire Drawing
 
 
3313 Alumina and Aluminum Production and Processing
 
33131 Alumina and Aluminum Production and Processing
 
331311 Alumina Refining
 
331312 Primary Aluminum Production
 
331314 Secondary Smelting and Alloying of Aluminum
 
331315 Aluminum Sheet, Plate, and Foil Manufacturing
 
331316 Aluminum Extruded Product Manufacturing
 
331319 Other Aluminum Rolling and Drawing
 
 
3314 Nonferrous Metal (except Aluminum) Production and Processing
 
33141 Nonferrous Metal (except Aluminum) Smelting and Refining
 
331411 Primary Smelting and Refining of Copper
 
331419 Primary Smelting and Refining of Nonferrous Metal (except Copper and Aluminum)
 
33142 Copper Rolling, Drawing, Extruding, and Alloying
 
331421 Copper Rolling, Drawing, and Extruding
 
331422 Copper Wire (except Mechanical) Drawing
 
331423 Secondary Smelting, Refining, and Alloying of Copper
 
33149 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, Extruding, and Alloying
 
331491 Nonferrous Metal (except Copper and Aluminum) Rolling, Drawing, and Extruding
 
331492 Secondary Smelting, Refining, and Alloying of Nonferrous Metal (except Copper and Aluminum)
 
 
3315 Foundries
 
33151 Ferrous Metal Foundries
 
331511 Iron Foundries
 
331512 Steel Investment Foundries
 
331513 Steel Foundries (except Investment)
 
33152 Nonferrous Metal Foundries
 
331521 Aluminum Die-Casting Foundries
 
331522 Nonferrous (except Aluminum) Die-Casting Foundries
 
331524 Aluminum Foundries (except Die-Casting)
 
331525 Copper Foundries (except Die-Casting)
 
331528 Other Nonferrous Foundries (except Die-Casting)
 

 

SOURCE: 2002 NAICS--North American Industry Classification System
U.S. Census Bureau, Washington D.C.

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