2018-01-16 There are many different models of cnc laser marking machine in the market. The two most common types are co2 laser marking machine and fiber laser marking machine. As we all know, the co2 cnc laser marking machine is suitable for process nonmetal material, and the cnc fiber laser marking machine is suitable for process metal and most nonmetal materials. This article, we will introduce the advantages of fiber laser marking machine for metal.