They also come into contact with bond, a high-grade paper used for important documents.

他们也会接触到铜版纸，一种高级的重要文件用纸。

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For example, the bond paper and the newsprint paper are greatly affected by the advertisement, and the packing paper is closely associated with the exports and consumption.

例如，铜版纸和新闻纸对广告业影响巨大，包装纸与出口和消费紧密联系。

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