减压阀门的铜合金管接头A.8481.1000 B.7411.2190 C.7

考试题库2022-08-02  5

问题 减压阀门的铜合金管接头A.8481.1000B.7411.2190C.7412.2000D.7412.2090

选项 A.8481.1000
B.7411.2190
C.7412.2000
D.7412.2090

答案 A

解析
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