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| Product Name: |
Spiral Drill Collar
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| Supply Ability: |
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| Specifications |
3 1/8"-14" |
| Price Term: |
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| Port of loading: |
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| Minimum Order |
1pc |
| Unit Price: |
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| The spiral drill collars are made of 4145H modified chromium-molybdenum alloy steel acc. to API Spec.7 and SY/t5144. All threads are phosphated, coppperized or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and special threads, the max diameter of drill collar is 14 inch. |
| Company: |
Jiyuan Sanhe Zhengyuan Petroleum Machinery Co., Ltd
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| Contact: |
Ms. Rita He |
| Address: |
JIyuan Henan China |
| Postcode: |
454650 |
| Tel: |
0086-391-6808027 |
| Fax: |
0086-391-6693971 |
| E-mail: |
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