concrete lintel 中文意思是什麼
concrete lintel
解釋
混凝土過梁-
Concrete structural member in the work ( excluding lintel for window & door ) shall be cast on site with strength of c40
2本工程鋼筋混凝土結構構件(除門窗過梁外)均為現場澆搗,混凝土強度等級均為c40 。
分享友人