1.four layer 6 fr-4 pcb 2.thickness:0.4-3.0mm 3.copper:H-4 OZ 4.94V0, surface finish: OSP,HASL,GOLD 5.MAX SIZE:1500*1200MM NumberItemTechnical specification12 1500x1200mm 2 layers 0.20mm 8mil 4 layers 0.40mm 16mil 6 layers 1.00mm 40mil 8layers 1.20mm 48mil layers 1.60mm 64mil 1.six layer 6 fr-4 pcb2.thickness:0.4-3.0mm3.copper:H-4 OZ4.94V0, surface finish: OSP,HASL,GOLD5.MAX SIZE:1500*1200MM