Material: FR4 Surface treatment: immersion Gold Width/space: 4/4mil Finish thickness: 1.6m Min Hot:0.2mm Single / Double Sided Immersion Gold PCB Specifications:PC Single / Double Sided Immersion Gold PCB B Manufacturer1. FR4 material2. Good quality with E-Test3. Fast delivery time within 5WKD4. Best price Base infos:1. Base on FR4 material with thickness 1.6mm2. 2 layer PCB3. Board size: 125* ...