20W Fiber Laser Marking Machine for Metal Stainless Steel Plastic Jewelry PVC PCB Non-Metal as Mark Engraving

  20W Fiber Laser Marking Machine for Metal Stainless Steel Plastic Jewelry PVC PCB Non-Metal as Mark Engraving(Model:Man-20)    Output power 20w Central wavelength 1064±4nm Polarization Random Single pulse power 0.8~1.0mJ Beam quality