With this seven ply line, single wall, double wall and triple wall corrugated board can be produced.

七层瓦楞纸板生产线，可以生产三层，五层及七层瓦楞纸板。

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With this seven ply line, single wall, double wall and triple wall corrugated board can be produced.

七层瓦楞纸板生产线，可以生产三层，五层及七层瓦楞纸板。

youdao