4 Layers ENIG/Immersion Gold
Layers：4
Board thickness：1.6mm
Minimum hole size：0.25mm
Inner layer Line Width/Space：Line Width:0.127mm, Line Space:0.127mm
Out layer Line Width/Space：Line Width:0.1mm, Line Space:0.1mm
Surface Finishing：ENIG/Immersion Gold
Special Process:：Pressfit Holes，Edge plating。
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