... pcba sample for us3) The PCB specification: base material, board thickness, copper thickness, surface finishing, gold immersion thickness, ... sample3) Quick turn PCB within 48 hoursMaximum Process PCB board Capability of Our Company FilesGerber, Protel, Powerpcb, Autocad, ... finishHAL, HASL Lead Free, Immersion gold, Gold plating, Gold finger, immersion silver, immersion Tin, OSP, Carbon ink,Certificate ...