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Products Description
Our company supply The Q series core barrel assembly .They can be divided into BQ, NQ, NQ3, HQ, HQ3, PQ and
PQ3 types. And this series core barrel has advantages of good drilling property, high salvage efficiency and low
consumption.It consists of outer tube assembly and inner tube assembly. Export-standard plywood box is utilized
to pack this Q series core barrel.
Technical Parameters:
| Double tube surface | ||||
| SIZE | Metric system(mm) | Imperial system(in) | ||
| Hole diameter | Core diameter | Hole diameter | Core diameter | |
| BQ | 60 | 36.5 | 2.36 | 1.44 |
| NQ | 75.8 | 47.6 | 2.98 | 1.88 |
| HQ | 96 | 63.5 | 3.78 | 2.5 |
| PQ | 122.6 | 85 | 4.83 | 3.34 |
| Triple tube surface | ||||
| NQ3 | 75.8 | 45 | 2.98 | 1.78 |
| HQ3 | 96 | 61.1 | 3.78 | 2.41 |
| PQ3 | 122.6 | 83 | 4.83 | 3.27 |












Company Profile
CGE group Wuxi drilling tools factory Co.,Ltd . (formerly named Wuxi drilling tool factory Co., Ltd)
was founded in1958, which is astate-owned leading enterprise



We have Friction welding production line,Thread casing hardening process production line .
Joint production line,Drill pipe production line, Automatic thickening production line,Bit sintering line,
Turn-milling line.Shot blasting and flaw detection production line.Mechanical arm production line.

why choose us
Products are used in many national major projects

Warehouse


Certification
.Passed the certification of ISO 9001:2000 quality system.
.Passed OHSAS18000 Occupational Health and Safety Management System Certification .
.We have more than 70 items independent intellectual property patents,Our new generation
wire line drill rod has broken the depth record of domestic diamond drilling.


1. We have been strictly controlled the quality of our raw materials, and all of our steel metals are from famous steel mills (factories). And physical metallographic analysis and chemical composition test are also used to ensure the quality of raw materials.
2. Immediate inspection will be done for each production procedure, and full examination will be implemented for threaded products.
3. Our outsourcing products will also be strictly examined before utilization.
4. Our sampling rate for final products is higher than 30%.

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