Tg170 FR4 HASL heavy copper PCB for plane transformer 2.0mm thickness FR4 TG170 4/4mil line width/space ENIG（1U”） 2oz finished  100% AOI Test ISO.9001/CQC/ISO.TS16949/ROHS Application：Consumer/home/network

ENIG EING Immersion Au PCB circuit board 1.6mm thickness FR4 TG150 4/4mil line width/space ENIG（2U”） 2oz finished  100% AOI Test ISO.9001/CQC/ISO.TS16949/ROHS Application：Consumer/home/network