A.0.003 B.0.004 C.0.005 D.0.006
A.角钢支架 B.电杆 C.木杆 D.膨胀螺栓
A.0.08 B.0.1 C.0.12 D.0.15
A.100 B.120 C.150 D.180
A.4 B.5 C.6 D.8