This thread just reminded me. . .
Better yet, armored (braided) heavy equipment pressure line hose.
My buddy with the diesel repair/parts biz, had a batch from an auction lot that were custom made for something that they werent' able to figure out what for.
Looks kinda like the braided water lines for washing machines.
He passed them on to me. I stuck them in a box, and misplaced that box. Need to find that. Memory fade is a pain.