single side plating pcb 1.high precision 2.FR-4 3.PTH 4.UL ,ISO9001 approved General Specifications ... .5oz ~ 3.0oz Laminate Materials FR-4,FR-1,,FR-2,CEM-1,CEM-3 Board Cutting Max. number of layers ... -4(1/3+-0.1mm);FR-1,FR-2,CEM-1,CEM-3(1/2+-0.1mm) V-cut angle 15°,18 ... ° 60° Others UL Cert. YISO Cert.ISO9001TS16949YISO14000Y single side plating pcb