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焊锡丝, 96.5/3/0.5, 1mm直径, 221°C, 500g
焊锡丝, 96.5/3/0.5, 0.5mm直径, 221°C, 500g
焊锡丝, 96.5/3/0.5, 0.3mm直径, 221°C, 500g