1- 8 layers
white/yello/black/red/green/matt black/matt green
Immersion gold/Hasl LF/OSP/immersion tin/immersion silver.
The surface finishing of quick turn printed circuit board uses these materials: immersion gold or Hasl LF or OSP or immersion tin or immersion silver. The quick turn printed circuit board not only has low plate making cost, but also has a fast plate making speed and high plate making precision. This method is simple to operate and cost-effective, so you deserve it.