1.2L PCB; 2.good quality,reasonable price; 3.quicker delivery; 4 ... Materials(RoHS Compliant)/CEM-3/CEM-1/AluminiumLayersingle layer,double layer,multi-layer(4-10)Board Thickness0.3mm-3.0mm,+/-0 ... -7um,gold:0.5-0.7umOSP/flash gold 0.2-0.5umPealable maskcover all on pad,thicknessā„0.20mmCarbon ... E-testing pass percent97% pass for the first time,+/-2%(tolerance) Certificate SGS,ISO,ROHS,UL, Welcome to visit ...