This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Brake Beams and Components; Couplers; Trucks and Components; Journals and Components; Wheel Sets and Components.
Railroad Furniture (FSG 71).
Possible NAICS Codes
336510 – Railroad Rolling Stock Manufacturing
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing
332312 – Fabricated Structural Metal Manufacturing
812930 – Parking Lots and Garages
327390 – Other Concrete Product Manufacturing
482112 – Short Line Railroads
423860 – Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers
335312 – Motor and Generator Manufacturing
331110 – Iron and Steel Mills and Ferroalloy Manufacturing