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花旗松方木
花旗松建筑工程方木
花旗松建筑工程方木

4、 終含水率不均勻,有殘余力;

5、 材堆頂部未加配重壓塊。

翹曲(一)、產生的原因

1、 主要由于干燥過程中鋸材干縮不一致造成板面扭翹不平;

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波多野结衣无码在线观看