|
BUTTRESS CASING |
||
|
名义尺寸 |
牙数/inch |
锥度 |
|
4-1/2 |
5 |
3/4 |
|
5 |
5 |
3/4 |
|
5-1/2 |
5 |
3/4 |
|
5-3/4 |
5 |
3/4 |
|
6-5/8 |
5 |
3/4 |
|
7 |
5 |
3/4 |
|
7-5/8 |
5 |
3/4 |
|
8-5/8 |
5 |
3/4 |
|
9-5/8 |
5 |
3/4 |
|
10-3/4 |
5 |
3/4 |
|
11-3/4 |
5 |
3/4 |
|
13-3/8 |
5 |
3/4 |
|
16 |
5 |
1 |
|
18-5/8 |
5 |
1 |
|
20 |
5 |
1 |
