Arduino shield for OLED module

The production and shipping are very quick. The circuit pattern, through holes, resist,silk screens, color, and cut lines are accurate. There seems no misalign of silk screen. Especially through holes seems like mirror. Beautiful. No defects found. Good workmanship. There is a number on silk screen, which seems a kind of control number. I wonder what is for, and whether I can specify the location.

Jul 04,2020
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PCB
HDI PCB
Assembly
FPC/
Rigid-Flex
X
Choose Num (pcs)
2 Layers
1.6mm
CNC
Machining
Sheet Metal
3D Printing
Injection
Molding
Aluminum
Aluminum
Resin
ABS
Mitsunori Suga View Profile
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