Fiber laser marking machine is the use of laser beam on a variety of different substances on the surface of the permanent mark. Marking effect is through the evaporation of the surface material to reveal the deep material, or through the chemical and physical changes of the surface material caused by light energy to "carve" traces, or through the light energy to burn part of the material, showing the pattern, text, bar code and other graphics that need to be etched. The so-called fiber laser marking machine refers to the marking machine is the use of fiber laser, fiber laser has a small size (no water cooling device, the use of air cooling), good beam quality (fundamental mode), maintenance free and other characteristics.