The factory for many years the history of copper production.
本厂已有多年的铜制品生产历史。
However, initial indications are that major disruptions to copper production should not last long.
无论如何，最初的迹象表明，铜生产受到影响的情况不会持续太久。
Applicable to mass production of copper.
适用于大批量生产铜条。
Copper Etching is an important step in the PCB production process.
蚀铜过程是生产线路板的一个关键步骤。
Copper Etching is an important step in the PCB production process.
蚀铜过程是生产线路板的一个关键步骤。
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