Archived - Standard Industrial Classification - Establishments (SIC-E) 1980
- E - Manufacturing Industries
- 29 - Primary Metal Industries
- 291 - Primary Steel Industries
- 2911 - Ferro-Alloys Industry
- 2912 - Steel Foundries
- 2919 - Other Primary Steel Industries
- 292 - Steel Pipe and Tube Industry
- 2921 - Steel Pipe and Tube Industry
- 294 - Iron Foundries
- 2941 - Iron Foundries
- 295 - Non-Ferrous Metal Smelting and Refining Industries
- 2951 - Primary Production of Aluminum Industry
- 2959 - Other Primary Smelting and Refining of Non-FerrousMetal Industries
- 296 - Aluminum Rolling, Casting and Extruding Industry
- 2961 - Aluminum Rolling, Casting and Extruding Industry
- 297 - Copper and Copper Alloy Rolling, Casting and Extruding Industry
- 2971 - Copper and Copper Alloy Rolling, Casting andExtruding Industry
- 299 - Other Rolled, Cast and Extruded Non-Ferrous MetalProducts Industries
- 2999 - Other Rolled, Cast and Extruded Non-Ferrous MetalProducts Industries
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