high quality PMTC welding balls tin beads 250K particles 0.2 0.3 0.4 0.45 0.5 0.6 0.76mm For BGA weld reworking Reballing

high quality PMTC welding balls tin beads 250K particles 0.2 0.3 0.4 0.45 0.5 0.6 0.76mm For BGA weld reworking Reballing

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