Specifications Place of Origin: Guangdong, China (Mainland) Brand Name: Capel Model Number: DSC_M7 Base Material: Polyimide FR4 Copper Thickness: 1oz Board Thickness: 0.9mm-2mm Min. Hole Size: 0.16 MM Min. Line Width: 0.17mm Min. Line Spacing: 0.17mm Surface Finishing: Immersion Gold Item: Flex-rigid Printed Circuit Board Layer: 4 Layers Solder mask color: Brown Green Application: Medical Machine Gold plating: Nickel:100u''-200u'' Gold:1u''-3u'' OSP: Film:8u''-20u'' Testing Fixture: 50-300V Finished via diameter: 0.1mm Service: Custom OEM Certificates: UL SGS ROHS ISO9001