| Index entry | NAICS Code | U.S. NAICS Title |
|
Oxalates (e.g., ammonium oxalate, ethyl oxalate, sodium oxalate) manufacturing
| 325199
|
All Other Basic Organic Chemical Manufacturing
|
|
Oxalic acid manufacturing
| 325199
|
All Other Basic Organic Chemical Manufacturing
|
|
Oxial mechanical face seals manufacturing
| 339991
|
Gasket, Packing, and Sealing Device Manufacturing
|
|
Oxygen equipment rental (i.e. home use)
| 532291
|
Home Health Equipment Rental
|
|
Oxygen manufacturing
| 325120
|
Industrial Gas Manufacturing
|
|
Oxygen tents manufacturing
| 339112
|
Surgical and Medical Instrument Manufacturing
|