Jun 16 , 2021
Laser laser engraving QR code on PCB circuit board, no carbonization
Laser laser engraving QR code on PCB circuit board, small cutting line width, no carbonization Nowadays, QR codes have become an indispensable part of our daily necessities. We can use QR codes to pay, search, register and even store personal information. Engraving a two-dimensional code on a PCB circuit board can facilitate users to query and search for information, and to a large extent, ...
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