| 摘要 |
Pump plug (1) for flowline operations, which pump plug (1) comprises a resilient body (2) and a flexible cage (3) having a wear-resistant outer surface (4) arranged around the resilient body (2), wherein the flexible cag e (3) comprises a tube having a first end (6) and a second end (7), which tube is provided with a number of slits closed (16) at at least one end.
|
