Laser marking machine applying on marking and coding machine has very long history. It is more applied to food and beverage industries these years. Laser marking machine has no comsumable cost, but it is suitable for some certain materials. Different types laser marking machine are suitable for different materials. CO2 laser marking machine is more suiatble for plastic, glass and fiber laser marking machines is more suitable for metal. There are also different powers of laser source like 10w, 20w, 30w and 50w.