... insecticides launch agent,commercial air condition R - 134a refrigerant,ethane 1,1,1,2 - tetrafluoroethane. alias HFC134a, HFC - 134a refrigerant, four fluorine ... refrigerant SUVA 134a refrigerant, KLEA 134a refrigerant . chemical name 1,1,1,2 - anti-sunction ethane, molecular formula CH2FCF3. Because R 134a ... cylinders and valves and other accessories damaged. R134a--< 1,1,1,2-tetrafluoroethane>