300mm x 5m x 25μm Single-sided Electrolytic Copper Foil
单面光铜片双面光锂电池铜箔科研软态电解铜箔超薄4.5μm压延铜箔 - 宽300mm*长5米*厚25μm 单面光电解铜箔
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Copper Foil 300mm x 5m Single-Side Polished Thickness 25um
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