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If you are planning to import gold finger circuit board,Website:http://www.ljpcb.com, Longjiang Circuit International Limited is one of the leading gold finger circuit board manufacturers and suppliers, welcome to contact with our factory.Type: gold finger circuit boardfinal board thickness: 2.0mmfinal copper thickness: 70umsolder mask colour: redsilk screen colour: whiteMin. line width/space: 0.2mm/0.2mmmin diameter of finished hole: 0.3mmsurface finish: goldfinger