NaK Coolantcell (GregTech 4)

The NaK Coolant Cell an item added by GregTech, which main purpose is to cool nucliar reacotrs, but it also is required in some crafting recipes. It comes in 3 variations, 60k, 180k and 360k, Each capable of storing the amount of heat it name suggests. NaK Coolant Cells can be cooled down in a Vacuum Freezer.