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: Books, Maps, and Other Publications
Possible NAICS Codes
541990 – All Other Professional, Scientific, and Technical Services
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
513120 – Periodical Publishers
541199 – All Other Legal Services
513140 – Directory and Mailing List Publishers