Jiyun Sanhezhengyuan Petroleum Machinery Co., Ltd.

China Manufacturer with main products: Drill Collars, Spiral Drill Collars, Non-Magnetic Drill Collars, Integral Heavy Weight Drill Pipes, Stabilizers, Cross-Over Subs, Kelly

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Spiral Drill Collar


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Quick Details

  • Condition: New

Specifications

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.

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