4Layer PCB ENIG+Gold Finger BGA and VFBGA Fine Pitch P.S. We supply PCBs for DDI with high quality and competitive price 1. 4Layer PCB;2. ENIG+Gold Finger (Au:30u");3. High quality&competitive price 4. ROHS,UL,SGS,ISO9000, ISO 14000, TS169495. 15years factory experience*About Us: RayMing Technology Co.,Ltd was founded in 1997, is a high-teach enterprise specializing in the production of high- ...