Spiral Drill Collar - 31/8"-

Spiral Drill Collar - 31/8"-
:
Jiyuan Sanhe Zhengyuan Petroleum Machinery Co., Ltd.
: 2009-10-16 00:50:33
:
Mining Machinery

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Description Of Spiral Drill Collar - 31/8"-

Spiral Drill Collar - 31/8"- Specificaton & Trade Terms

Model31/8"-
Place Of OriginChina
Price TermEX-Work
Payment TermT/T
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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