An introduction is made on the construction process of artificial hole pile including holing, wall protection, fabrication and installation of reinforcing cage, pile core concrete grouting etc.

 
  • 介紹人工挖孔樁的成孔、護壁、鋼筋籠制作和安裝、樁芯混凝土澆灌等施工過(guò)程。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan