25um PTH 4OZ Copper HDI PCB Board FR4 8 Layers Immesion Gold 3u''
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Custom PCB Board FR4 4OZ Copper HDI Board 1. 8 layers hdi board. 2. FR4 substrate. 3. PTH wall 25um. 4. 4OZ heavy copper. 5. Blind/Buried via and VIP ...
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