What does hfr stand for?
hfr stands for "Hot Fractured Rock"
How to abbreviate "Hot Fractured Rock"?
"Hot Fractured Rock" can be abbreviated as hfr
What is the meaning of hfr abbreviation?
The meaning of hfr abbreviation is "Hot Fractured Rock"
What does hfr mean?
hfr as abbreviation means "Hot Fractured Rock"
