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Drill Collar, API 7
 Drill Collar, API 7 |
Product Description
Golden Bull drill collar is mainly used to provide bit weight to drill bit so that drill pipe is in tension. Especially can keep drill bit centralized and hole track by large rigidity. Spiral drill collar is used to reduce contact area with hole so as to avoid efficienty bit stricking from differential pressure. Golden Bull drill colars are manufactured as per API spec 7-1.
More Product Features
| Standard: | API spec 7, API Q1 |
|---|---|
| Company: | Golden Bull Trade House Limited |
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