Min. via diameter: 0.1mm. Board size: 3.54×2.75inch. Min. trace/space: 5.2/2.8mil. Surface finish: ENIG (RoHS) Application: Communication. Thanks to 10+ years of effort and innovation in advanced PCB board making, PCBCart has become one of the leading printed circuit board manufacturers in China. We proudly provide you with high-quality PCB