Excel multiple IF conditions

Hi

I have 9 different descriptions of trailer loads in Column D (they are programmed so I can choose them from a drop down list). Then in Column F I want it to automatically input the correct code for the trailer load.

I.e. If column D says 'Potatoes' Column F should say '02 02 02'
If column D says 'Whey' Column F should say '02 02 04'
etc.......

Each trailer load will only ever relate to one code, but each code could have several load types.

I.e. Potatoes would be 02 02 02, but also Daf could be 02 02 02

Thanks!