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Plastic and rubber won't conduct electricity, but copper will.
塑料和橡胶不导电，但铜可以。
youdao
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The imports of copper wire selection of quality plastic, quality and safety.
该电线选用进口铜材优质塑料，质量安全。
youdao
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The imports of copper wire selection of quality plastic, quality and safety.
该电线选用进口铜材优质塑料，质量安全。
youdao