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| Product Name: |
spiral drill collar
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| Supply Ability: |
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| Related proudcts |
drill collar, spiral drill collar, |
| Specifications |
API Spec7-1 and Standard SY 5144 |
| Price Term: |
negotiated |
| Port of loading: |
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| Minimum Order |
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| Unit Price: |
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| Spiral drill collar is used to reduce contact area with hole so as to avoid efficiently bit sticking from differential pressure. |
| Company: |
tianhe oil group
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| Contact: |
Ms. viola qian |
| Address: |
no.2999,xinyang road,fengxian district,shanghai,china |
| Postcode: |
201413 |
| Tel: |
008613472825587 |
| Fax: |
86-021-61558302 |
| E-mail: |
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