| 325120 |
Compressed and liquefied industrial gas manufacturing |
| 325120 |
Dichlorodifluoromethane manufacturing |
| 325120 |
Dry ice (i.e., solid carbon dioxide) manufacturing |
| 325120 |
Fluorinated hydrocarbon gases manufacturing |
| 325120 |
Fluorocarbon gases manufacturing |
| 325120 |
Gases, industrial (i.e., compressed, liquefied, solid), manufacturing |
| 325120 |
Helium manufacturing |
| 325120 |
Helium recovery from natural gas |
| 325120 |
Hydrochlorofluorocarbon (HCFC) gases manufacturing |
| 325120 |
Hydrofluorocarbon (HFC) gases manufacturing |