This is a laser marking application for PCB circuit board. The customer ask to mark the 4mm QR code on the workpiece. The QR code includes some infomation. You can scan it by iphone and get the infomation. The customer requires this QR code to be accurate and highly identifiable. The QR code is marked by our fiber laser marking machine. There are many advantages: Excellent beam quality; maintenance-free operation; Good stability; high frequency; uniform engraving lines; Non-contacting processing.

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