Conductor material: hardy cable every day without oxygen copper wire fine twisted production into a bundle.

导体材料：耐寒电缆天天生产无氧铜丝精绞成束。

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Conductor material: hardy cable every day without oxygen copper wire fine twisted production into a bundle.

导体材料：耐寒电缆天天生产无氧铜丝精绞成束。

youdao