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Xi an Overseas Oilfield Supplies Co Ltd

    
Drill collars

Drill collars


[Sizes OD: 3 1/8in-11in] [China]
Posted Date: August 27, 2009
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Description
The Drill Collar is used between the drill pipe and the bit in the drill stem. It is used to put weight on the bit so that the bit can drill. It contains spiral collar, Non-magnetic drill collars&Elevator, Slip ***** drill collars are made of 4145H modified chromium-molybdenum alloy steel ***** API Spec.7 and SY/T5144. All threads can be phosphated, copperised or cold worded. All threads are machined with CNC Lathe-Double_shouldered and a special thread, the max diameter of drill collar is 14 inch.
Most of the products are Chinese origin .
 
 
Other Information
Location:  China 
Minimum Order:  100M 
Price for Minimum Order:  call or e-mail 
  (This price is only for minimum order, for large quantities, please contact)
Sample Available:  No 
Related Categories: Steel Pipes, Tool Sets »
Related Products: drill collar, spiral collar »
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