... single lined board 单挂面纸板 single ply board 单层纸板 single white vat-lined board 圆网纸机制单面粗纸板 ...
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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。
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