|
| 3220 | Garter cutting and sewing | |
| 3824 | Gas and oil well machinery and tool manufacturing | |
| 2200 | Gas and oil well, cutting and pulling casings, tubes and rods, except contract services | |
| 3851 | Gas apparatus, dental, manufacturing | |
| 3819 | Gas burner manufacturing | |
| 3829 | Gas compressor manufacturing | |
| 5000 | Gas engineering and fitting on construction project | |
| 3819 | Gas fitting manufacturing | |
| 3829 | Gas generator manufacturing | |
| 3829 | Gas governor manufacturing | |
| 3819 | Gas heater, domestic, manufacturing | |
| 3819 | Gas lamp manufacturing | |
| 3819 | Gas lighting fixture manufacturing | |
| 3540 | Gas liquor, ammoniacal, manufacturing, not in steel works or gas plants | |
| 5000 | Gas main construction | |
| 3851 | Gas mask manufacturing | |
| 3851 | Gas meter manufacturing | |
| 3824 | Gas producer machinery manufacturing | |
| 8324 | Gas prospecting, contract services | |
| 3829 | Gas pump manufacturing | |
| 3819 | Gas stove manufacturing | |
| 2200 | Gas well | |
| 8330 | Gas well drilling machinery rental service | |
| 8324 | Gas well surveying, contract services | |
| 2200 | Gas well surveying, except contract services | |
| 4102 | Gas works | |
| 5000 | Gas works construction | |
| 6100 | Gas, compressed liquid, dealing | |
| 3530 | Gas, petroleum refinery product, manufacturing | |
| 3559 | Gasket, rubber, manufacturing | |
| 3819 | Gasoline lantern manufacturing | |
| 3530 | Gasoline manufacturing | |
| 3829 | Gasoline pump manufacturing | |
| 3530 | Gasoline refining | |
| 3823 | Gas-operated cutting and welding equipment manufacturing | |
| 3211 | Gauze fabric manufacturing | |
| 3844 | Gear, bicycle, manufacturing | |
| 3843 | Gear, motor vehicle, manufacturing | |
| 3845 | Gear, power transmission, aircraft, manufacturing | |
| 3829 | Gear, power transmission, except for motor vehicle and aircraft, manufacturing | |
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