Section 06 Products of the chemical or allied industries 29 Organic chemicals 29 03 Halogenated derivatives of hydrocarbons 29 03 51 "2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3tetrafluoropropene (HFO-1234ze) and 29 03 51 00 "2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3tetrafluoropropene (HFO-1234ze) and Commodity Code Description 29 03 51 00 000 "2,3,3,3-Tetrafluoropropene (HFO-1234yf), 1,3,3,3tetrafluoropropene (HFO-1234ze) and
