| Message: | If you are planning to import black solder mask pcb, Longjiang Circuit International Limited is one of the leading black solder mask pcb manufacturers and suppliers, welcome to contact with our factory.Type: black solder mask PCBfinal board thickness: 0.8mmfinal copper thickness: 35umsolder mask colour: blacksilk screen colour: whiteMin. line width/space: 0.15mm/0.15mmmin diameter of finished hole: 0.4mmsurface finish: immersion gold url:http://www.ljpcb.com |
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