... of the leading China power supply pcb circuit board partern manufacturers and suppliers with professional power supply pcb circuit board partern factory, we ... 3mil) Surface Finishing: HASL Max Panel size: 800*508mm Board finished thickness: 0.2-4.0mm Tolerance of finished panel ... Free,FR-1,FR-23Board thickness0.2mm-4mm4Max.finished board side800*508mm5Min.drilled hole size0.25mm6min.line width0.075mm( ...