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Spiral Drill Collars

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API Standard AISI 4145H Mod 6-1/2

  • USD 2,300
  • 10 pcs (Min.Order)
  • FOB Shanghai (Price Condition)
  • Place of origin : China
  • Supply Ability : 3000 pcs / month

Usage:Drill collars are used to provide weight on bit so that drill pipes are kept in tension. Especially drill collars can keep drill bits centralized and hole track by large rigidity Material: AISI...

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