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Ecm EMS Service SMT Mother Printed Circuit Board PCB PCBA Electric Assembly

Ecm EMS Service SMT Mother Printed Circuit Board PCB PCBA Electric Assembly
PRODUCT  DESCRIPTIONLayer:1-40 layerSurface:HASL/OSP/ENIG/ImmersionGold/Flash Gold/Gold finger ect.Copper thickness:0.25...

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