规格
密封能力
套管重量范围
in
mm
MPa
lb/ft
5 1/2
139.7
30
17-23
7.72-10.54
6 5/8
168.3
20-32
7.32-12.06
7
177.8
23-38
8.05-13.72
7 5/8
193.7
29.7-42.8
9.52-14.27