The North American Industry Classification System NAICS is a system for classifying industries by a six-digit code. [Wikipedia]
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TOP Description Asmts Reccs
333xxx Machinery Manufacturing 553 4,541
open 3331xx Agriculture, Construction, and Mining Machinery Manufacturing 96 832
open 3332xx Industrial Machinery Manufacturing 58 495
open 3333xx Commercial and Service Industry Machinery Manufacturing 47 343
open 3334xx Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing 80 660
open 3335xx Metalworking Machinery Manufacturing 79 625
open 3336xx Engine, Turbine, and Power Transmission Equipment Manufacturing 47 418
open 3339xx Other General Purpose Machinery Manufacturing 146 1,168
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