公称通径
|
dn
|
I
|
D
|
D1
|
L
|
15
|
20
|
16
|
45
|
31
|
112
|
20
|
25
|
19
|
55
|
37
|
132
|
25
|
32
|
22
|
66
|
44
|
144
|
32
|
40
|
26
|
82
|
54
|
167
|
40
|
50
|
31
|
98
|
65
|
172
|
50
|
63
|
38
|
120
|
79
|
206
|
65
|
75
|
44
|
140
|
92
|
273
|
80
|
90
|
51
|
163
|
108
|
303
|
100
|
110
|
61
|
225
|
146
|
333
|
单位为毫米
|