Co2
Laser machines can cut all kinds of materials. The material you can cut though will depend on what kind of laser machine you have. CO2 laser machine can’t cut through reflective metals like aluminum, copper, and brass. But they can cut through nonmetallic materials like wood and plastic.
Fiber lasers are solid-state lasers used widely in laser marking and engraving machines. The major difference between a fiber laser and a CO2 laser lies in their ability to laser cut sheet metal.