相连两法兰端面应保持平行,偏差不大于法兰外径的1.5%,且不得大于(
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A.1mm
A.1mm
A.1mm
A.1mm
A.1mm
B.1.5mm
B.1.5mm
B.1.5mm
B.1.5mm
B.1.5mm
C.2mm
C.2mm
C.2mm
C.2mm
C.2mm
D.2.5mm
D.2.5mm
D.2.5mm
D.2.5mm
D.2.5mm
参考答案: