The Standard Industrial Classification SIC is a system for classifying industries by a four-digit code. [Wikipedia]
The North American Industry Classification System NAICS is now the primary industrial coding system.
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TOP Description Asmts Reccs
34xx Fabricated Metal Products 2,322 17,728
open 341x Metal Cans And Shipping Containers 100 825
open 342x Cutlery, Handtools, And Hardware 148 1,088
open 343x Plumbing And Heating, Except Electric 82 669
open 344x Fabricated Structural Metal Products 669 4,790
open 345x Screw Machine Products, Bolts, Etc. 116 931
open 346x Metal Forgings And Stampings 290 2,327
open 347x Metal Services, Nec 294 2,210
open 348x Ordnance And Accessories, Nec 45 346
open 349x Misc. Fabricated Metal Products 572 4,490
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