This is a testing video of ring inside marking by our 60W JPT Mopa M7 laser marking machine. It is one time for deep engraving. China OV Laser is specialized in laser marking. If you have any interests in it, please feel free to contact OV Laser-Jully at +8613707153812 or Email sales4@zgglaser.com. We will be glad to make free sample tests for you too.
