... and FPC board 4. UL, RoHS, SGS High Quality PCB Manufacturing Shenzhen Yuzhixiang Electronics Co., Ltd, ... of pcb/ fpc/ pcba or pcba sample for us3) The PCB specification: base material, board ... Protel, Powerpcb, Autocad, Cam350, etcMaterialFR-4, Hi-Tg FR-4, Lead free Materials (RoHS Compliant) , ... SGS ULSpecial requirementsBuried and blind vias, Impedance control, via plug, BGA soldering and gold ...