Grey board: Homogeneous caseboard made from newsprint furnish.Grey board or unlined chipboard are the normal boards used for case-making.
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美
释义
灰纸板:用新闻纸的配料所造成的纸板,它和书壳用纸板相似。灰纸板或无里粗纸板是造书壳的常用材料。
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