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       ????????PCB??·?壬????FR-4????(KB6160A)????????????????????????磺68.5mm*68.5mm????????????PCB?壬?????0.4mm??????0.45mm?????γ?羫??????????ι????0.2mm??V-cut?????ι????0.5mm???????????35um/1oz????PCB?????????0mm,??????2.5mm??


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