| Charcoal (5) |  |
| Fuel (176) | |
| Fueling (3) | |
| Gasoline (26) | |
| Propellant (1) | |
| Charcoal (5) | |
| Fuel (176) | |
| Fueling (3) | |
| Gasoline (26) | |
| Propellant (1) | |
Used in refrigerants, propellants and solvents, CFCS were replaced initially with hydrochlorofluorocarbons (HCFCS); now, chemical manufacturers have moved on to a third-generation replacement, hydrofluorocarbons (HFCS;
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