Description
Quality Control Services: Water Purification and Sewage Treatment Equipment

Possible NAICS Codes
221320 – Sewage Treatment Facilities
541380 – Testing Laboratories and Services
221310 – Water Supply and Irrigation Systems
541690 – Other Scientific and Technical Consulting Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
541620 – Environmental Consulting Services
325998 – All Other Miscellaneous Chemical Product and Preparation Manufacturing
561210 – Facilities Support Services
562998 – All Other Miscellaneous Waste Management Services
237110 – Water and Sewer Line and Related Structures Construction