短语词组短语copper -clad steel wire blank 铜包钢线坯copper r clad steel 包铜钢copper r clad steel wire 铜包钢线Concentric -Lay-Stranded Copper-Clad Steel Conductors 同心绞捻的包铜钢导线tin -caoted copper-clad steel wire 镀锡铜包钢线 返回 copper clad steel