Workers in this unit group operate single-function machines or machinery that is part of a larger production process to process mineral ore and metal products.

此单元组的工人操作单一功能的机器或作为较大的生产过程中的一部分的机械，来处理矿石和金属制品。

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Workers in this unit group operate single-function machines or machinery that is part of a larger production process to process mineral ore and metal products.

此单元组的工人操作单一功能的机器或作为较大的生产过程中的一部分的机械，来处理矿石和金属制品。

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