产品名称：The character of Back-off Joint
1. High structural strength,
2. Stable performance,
3. Pull up string to original hanging weight, positive rotate string 15-20 circles, then pull up and fishing the string above the safety joint.
2. Stable performance,
3. Pull up string to original hanging weight, positive rotate string 15-20 circles, then pull up and fishing the string above the safety joint.
No. | Spec. | OD/mm | ID/mm | Connection Thread | Fishing Thread | Remarks |
1 | DKJ-89 | 89 | 60 | 2 7/8TBG | 2 7/8TBG |
|
2 | DKJ-108 | 108 | 75 | 3 1/2TBG | 3 1/2TBG |
|
3 | DKJ-121 | 121 | 88 | 4TBG | 3 1/2TBG |
|
Products
