Advantages: imported linear Guide, solenoid valve, casting base is more stable, large cylindrical elevator firmer, more convenient USB interface. In the industrial field, often require permanent identification on the product surface, usually as a trademark for future tracking, serial number, date, and so on. 

Working principle: Computer-controlled printing pin in the x, y two-dimensional plane according to a certain trajectory, while print the role of acupuncture in compressed air under high impact exercise, thereby printing out some depth markings on the workpiece. www.gzmarker.com