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NG type Internal Hook is a fishing tool generally used inside casings and oil tubings for fishing ropes and other fishes such as wire-lines, cables, logging wire-lines and paraffin cutters.
| Specifications - Internal Hook | ||||
| Model | Product Cod。 | O.D.(mm) | Connection | For Casing/Tubing Size(in) |
| NG70 | L23-7000 | 70 | 2 3/8PAC | 31/2 |
| NG90 | L23-9000 | 90 | NC26 | 4 1/2 |
| NG110 | L23-11000 | 110 | NC31 | 51/2 |
| NG136 | L23-13600 | 136 | NC31 | 6 5/8 |
| NG150 | L23-15000 | 150 | NC38 | 7 |
| NG176 | L23-17600 | 176 | NC38 | 8 5/8 |
| NG190 | L23-19000 | 190 | NC38 | 9 5/8 |
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