A.彎起鋼筋方向不對(duì),彎起的位置不對(duì) B.事先沒有對(duì)操作人員認(rèn)真交底,造成操作錯(cuò)誤 C.在鋼筋骨架立模時(shí),疏忽大意 D.鋼筋下料錯(cuò)誤
A.40t B.60t C.80t D.100t
A.30t B.60t C.80t D.90t