Mini Hand Jet Inkjet Printer Digital Manual Batch Number Printing Machine1. Can print on all kinds of material, like metal, glass, wood, carton, plastic, aluminum, building material etc 2. Work with oil based ink or high resolution ink cartrodge, no need sovent or pump. 3. Allows to print date, time, batch No.,logo, brand name, bar code etc. 4. No PC required and you can edit printing text on keyboard directly. 5. Adopts USB interfaces and allows files transfer from the PC 6. High quality printhead which make the device