copper scrap

英美

释义
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- 废铜,红铜杂件
临近单词

copperware copper copper-graphite-bronze alloy copper wound control transformer copper-lead-zinc sulfide ore Copper and its Compounds Precious copper-based in situ composites copper-sulfate impregnated pole copper-clad aluminium conductor copper-based composite material copper-gold-tungsten deposits copper electroplating on ceramics

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