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NB/T 47027-2012
Equal-length twin stud for pressure vessel flange -type B
Nom
P
ds
r
M16
2
13.84
6
M20
2.5
17.29
8
M24
3
20.75
8
M27
3
23.75
8
M30
3.5
26.21
10
M36
3
32.75
10
M42
3
38.75
12
M48
3
44.75
14
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