Dongying Oilman Machinery Equipment Co.,Ltd.

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Dongying Oilman Machinery Equipment Co.,Ltd.
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6-3/4" Drill String Components , DC Spiral Drill Collars NC Joint

6-3/4
  • 6-3/4
  • 6-3/4
  • 6-3/4
  • 6-3/4
  • 6-3/4
Products Detailed
API 7-1 Spec 6-3/4" AISI 4145H Spiral DC Drill Collar For Oil Well Drilling Drill collars are extra-heavy integral tools used to concentrate weight ...
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