GS-SUB200 Laser Sub-surface Engraving Machine is use the 3D Camera to take the three-dimensional pictures on the human body, and after computer processing , and then through the laser inner carving technology made dots in crystal , Many dots to form a three-dimensional images for never forgotten . This type of machine used the rapid scanning technology。 Suitable for large shopping malls, tourist attractions and the place of big population like that make the personalized portrait production。 Characters