wax moth damage
can i still use them?
Yes Wax Mouth damage.
I would put the frames in the freezer for 2-3 days then thaw and place in a hive.
The bees will clean them up better than you could.
Zone 6b 1400'
I would cut out any badly webbed spots as removing the webs is a lot of work for the bees. I would leave any place not badly webbed. My guess is that is last year's (or older) damage unless you see some worms.