No, seriously: This here is first-classic heavy rock. Nevertheless, not a copy. A little Budgie, Black Sabbath, Hawkwind or Zeppelin are unmistakable.
However, the whole thing looks like the excellent -ebenso Siena Root or the Samsara Blues Experiment (see Amazon reviews.) - Not frumpy.
Kadavar are truly no Oldie Band: The energy in the music is genuine, authentic and gripping. The "hardness" is not placed but internalized.
If you like Graveyard, this may also. And with what?
Rightly.