Mold YAG Laser Welding Machine 200W/300W/400W/600W Mould Repair Welder Technical Parameters Model SW-MLW200 SW-MLW300 SW-MLW400 Power 200W 300W 400W Laser wavelength 1064nm Max.Pulse Energy 140J 200J Pulse Width 0.1~20ms Focal Diameter 0.1~2.0mm Laser w...