Section 06 Products of the chemical or allied 29 Organic chemicals 29 03 Halogenated derivatives of hydrocarbons 29 03 77 - - - Hexachlorodifluoropropanes 29 03 77 50 - - - Hexachlorodifluoropropanes Commodity Code Description 29 03 77 50 000 - - - Hexachlorodifluoropropanes