等径直通 (Equal-diameter straight pipe)
规格 (Type)
d
d
1
D
L
S14
6.5
9.8
1
47
S16
8.5
11.8
16.5
47
S18
10
13.8
18.5
48
S20
12
15.8
20.5
49.5
S25
16
19.8
25.5
51
S32
21
25.8
32.5
54
