... .1-16 layers, FR4, Au. 2.Short Lead Lime. 3.UL,RoHS,SGS, ISO9001:2000 4.11 years PCB experience. PCB ... : Gold finger, peelable mask, Non-across blind/buried vias, characteristic impedance control, Rigid-flex board etc. Reliability Test: flying probe test/fixture test, impedance test, solderability test ...