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I have a small C206 Cartridge that is Butane

I have a couple of the large CV470 Cartridges that are Propane/Butane Formula but since I don't read French I do not know the percentages of either gas.

I have a couple of the large CV470 Cartridges that are NEW Propane/Butane Formula but as above I do not know the percentages of the NEW mix.