Serial Number Engraving on Printed Circuit Board

24 Nov

The photo has been enlarged by about 8 times.

The serial numbers are engraved on the PCBs.


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: