TaxonomyMap
NAICS
UNSPSC
NAICS
/
31-33
/
331
NAICS
Subsector
331
Primary Metal Manufacturing
Sub-categories (5)
3311
Iron and Steel Mills and Ferroalloy Manufacturing
3312
Steel Product Manufacturing from Purchased Steel
3313
Alumina and Aluminum Production and Processing
3314
Nonferrous Metal (except Aluminum) Production and Processing
3315
Foundries