cushion board
... curved roll 弧形辊 cushion board 瓦楞包装纸板 cushion 垫子；缓冲装置；纸张弹性 ...
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最终制得不影响印刷而又具有抗水保湿性能的瓦楞包装纸板。
Finally the corrugated board which possess waterproof and moisture-holding characters without affecting the printing process is obtained.
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