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.
Modification of Equipment: Rope, Cable, Chain, and Fittings
Possible NAICS Codes
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
561990 – All Other Support Services
332710 – Machine Shops
238210 – Electrical Contractors and Other Wiring Installation Contractors