... /35um copper thickness 4. Lead Free HAL AP1245 Video PCB1.Layer : 1Layer ~ 2Layer 2.Min Trace & Space : 4mil / 4mil 3.Normal ... : 0.2mm ~ 2.4mm 5.Cu(In/Ex) : 1oz ~ 4Oz 6.Finish : OSP, HASL, Gold Plating, Immersion Gold7.Min Hole : 0 ... customers needs: we have advantage at double sides,four layers,multi-layers pcbs(1-12 layers)Our quality assurance: ISO9001, Rohs compliance ...