What does HF mean in Governmental & Military

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All HF meanings

What does HF stand for?

HF stands for "Hydrogen Fill"

How to abbreviate "Hydrogen Fill"?

"Hydrogen Fill" can be abbreviated as HF

What is the meaning of HF abbreviation?

The meaning of HF abbreviation is "Hydrogen Fill"

What does HF mean?

HF as abbreviation means "Hydrogen Fill"