The article describes leak locations commonly-occurred on corrugated sheet steel roofs and introduces K.

指出了彩钢压型板结构的常见渗漏部位，介绍了使用美国K。

youdao

The article describes leak locations commonly-occurred on corrugated sheet steel roofs and introduces K.

指出了彩钢压型板结构的常见渗漏部位，介绍了使用美国K。

youdao