介绍了碗扣式钢管脚支架的施工工艺和控制要点。

The paper introduces construction technics and control point of bowl fasten mode steel tube bracket.

youdao

介绍了碗扣式钢管脚支架的施工工艺和控制要点。

The paper introduces construction technics and control point of bowl fasten mode steel tube bracket.

youdao