No, it's like refacing brake rotors.
I have had this done in the past, just not on a 'dual mass' flywheel.
I am not familiar with how those are built.
On a normal iron flywheel, they mount it on a lathe type machine and true the surface with the cutter.
They remove 10 - 30 thousands, up to a limit.

EDIT ! I did some googling, the consensus of opinion is that the entire dual mass assembly be replaced, clutch, pressure plate, flywheel and all.