Detailed Product Description Circuit Board of Single-sided PCB with 6H Solder Mask Rigidity,the layer can from 1-32 layer.Number of layers: single ... , FR-1 or CME-1Base board thickness: 0.3 to 4.0mmSurface finishing: OSP, HAL, Au immersion, silver, soft Au, nel plating ... : 150 to 300VThermal cycling ability: 288°C, 5 secondsFinished board area: 560 x 610mmMinimum line width and spacing: 0.1 ...