圆木和锯材。允许偏差和优选尺寸。第1部分：软木锯材。

Round and sawn timber - Permitted deviations and preferred sizes - Part 1: softwood sawn timber.

youdao

圆木和锯材。允许偏差和优选尺寸。第1部分：软木锯材。

Round and sawn timber - Permitted deviations and preferred sizes - Part 1: softwood sawn timber.

youdao