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| Place of Origin | Chongqing, China |
| Brand Name | Gold |
| Model Number | NQ |
NQ PQ Wireline Triple Tube Core Barrel
core barrel is a type of drilling tool used in geology and mining to collect rock or soil samples from the subsurface. There are several types of core barrels, including:
Single-tube core barrel: This type of core barrel consists of a single tube that is pushed into the ground to collect the core sample.
Double-tube core barrel: This type of core barrel has an outer tube and an inner tube. The outer tube collects the sample, while the inner tube keeps the sample intact during retrieval.
Triple-tube core barrel: This type of core barrel has an outer tube, an inner tube, and a third tube that surrounds the inner tube. The third tube collects the sample, while the inner tube keeps the sample intact during retrieval.
| No. | Std. | Item | Bit Std. | Reamer Std. | Bit OD(mm) | Bit ID(mm) |
| 1 | NQ3 | 3M triple tube core barrel | NQ3 | NQ | 75.3 | 45 |
| 2 | HQ3 | 3M triple tube core barrel | HQ3 | HQ | 95.6 | 61.1 |
| 3 | PQ3 | 3M triple tube core barrel | PQ3 | PQ | 122 | 83 |
| 4 | SQ3 | 1.5M triple tube core barrel | SQ3 | SQ | 147.6 | 102 |
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