Number of Layers: 8-layer Base Material: FR4 Copper Thickness: 1oz Board Thickness: 1.6mm Min. Hole Size: 0.2mm Min. Line Width: 0.1mm Min. Line Spacing: 0.1mm Surface Finishing: Immersion gold Color: Green,Blue,Black,Red,Yellow,white Layers: 1-28 Finished board thickness: 0.2-7.0mm Finised copper thickness: 1-6OZ PCB Standard: IPC-A-610 D Hole tolerance: PTH: �±3mil, NTPH: �±2mil Impedence Control Tolerance: �±5% Certificate: ISO, and ROHS OEM/ ODM Service: One-stop turnkey Service Small order: Acceptable