Business card made of PCB, with a PCB ruler pattern on the bottom side Recommended PCB manufacturing options: FR-4, Immersion Gold 1u, 0.4mm or 0.6mm 2-layer PCB, 1oz copper, white soldering mask + black silk overlay or black soldering mask + white silk overlay
名片，PCB制作，反面为PCB尺 推荐的PCB打板要求：FR-4，沉金1u，0.4mm或0.6mm 2层板，1oz铜，白油黑字或黑油白字
学生时候做的了，传上来，原档，便于修改。照片渣渣，仅供参考。
