[中 文] 伸縮撈矛和兩用伸縮撈矛是用與修井的內撈工具，兩種工具不同之處在于：連用伸縮撈矛一種規格的油管， 而伸縮撈矛一種規格只能打撈一個規格的油管，這兩種規格都具有倒扣功能
[English] Both of the adjstable & bual-purpose adjustable spears are the internal fishing tools used for oil well repairing.The difference between the two binds of the fishing tool is that the dual-purapose adjustable spear can be used for fishing two different size of oil tubing.Both of them have the “Bo0”(backstopping)function.
型號 | 外徑Φ | 打撈規格(mm/in） | 許用載荷KN | 總長 | 接頭螺紋 |
LM-S73 | 114 | 73（2-7/8″） | 250 | 647 | NC31 |
LM-S89 | 114 | 89（3-1/2″） | 360 | 739 | NC31 |
LM-S102 | 140 | 102（4″） | 430 | 800 | NC38 |
LM-S114 | 140 | 114（4-1/2″） | 760 | 800 | NC38 |
