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.
Optical Goods Manufacturing Machinery.
Ophthalmic Lens Cutting, Drilling, Edging, and Grinding Machines; Specialized Semiconductor, Microcircuit, and Printed Circuit Board Manufacturing Machinery.
Possible NAICS Codes
238150 – Glass and Glazing Contractors
327215 – Glass Product Manufacturing Made of Purchased Glass
333314 – Optical Instrument and Lens Manufacturing
339115 – Ophthalmic Goods Manufacturing
334413 – Semiconductor and Related Device Manufacturing
327211 – Flat Glass Manufacturing
811219 – Other Electronic and Precision Equipment Repair and Maintenance
541690 – Other Scientific and Technical Consulting Services
541350 – Building Inspection Services
541330 – Engineering Services