... and 2D barcode.2,Tech Parameters HMD-50A jewelery Laser Marking Machine Output Power50W(adjustable)total Power ... Electronic communications industry: the phone keypad, keyboard, electronic components, home appliances panel, cable, cable, etc;-Hardware tool ... printed products), epoxy resin (encapsulation of electronic components, insulation layer) 4. Laser marking Samples: Jewelery Laser Marking system