A.混凝土墩的現(xiàn)場澆制 B.混凝土墩成品安裝 C.支架安裝
A.0.6 B.0.7 C.0.8
A.2.3%;1.74%;1.52% B.2.34%;1.4%;1.52% C.2.34%;1.74%;1.52%