Technical parameters  Print speed :3-5 characters / sec; Print depth :0.01-2mm;  Print: any size English characters,Website: , numbers, graphics;  Photo Editor: serial (serial number) is automatically printed, stored, re-number prompt, bar  code input and output print;  Print Material: HRC60 hardness of the following types of metal or non-metallic workpiece;  Flat-screen print range: 100mm*360° or custom sizes;  The accuracy guarantee: 5 years of continuous work the font precision error ≤0.001mm;  Working gas source: 0.4 to 0.6 Mpa, 3L / S;  Operating voltage: 220VAC 50Hz;  Total power: 400W;  Weight: About 30-80kg .