I have no idea the answer to your question. But I’m curious why?
If you are trying to “pre-label” canning lids to be used to actually can food it may not work because I’ll bet if you put enough power in to the lid to make a good mark on the outside then the coating on the inside of the lid becomes damaged. Just a guess.
Interesting question though. Wife & I can loads of food every year. Laser engraving lids would be interesting, but I don’t think the inner coating would survive the heat.