A.預(yù)應(yīng)力鋼絞線1×7-181.4-1860-GB/T5224—2003
B.預(yù)應(yīng)力鋼絞線1×7-15.20-1860-GB/T5224—2003
C.預(yù)應(yīng)力鋼絞線1×7-181.4-1940-GB/T5224—2003
D.預(yù)應(yīng)力鋼絞線1×7-15.20-1860-GB∕T14370-2007
A.5
B.6
C.7
D.8
A.200
B.50
C.150
D.100