TREA

Blow-out preventers, i.e. apparatus closing around a drill pipe

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Industry

  • CPC
  • E21B33/06
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21BEARTH DRILLING E21B33/00Sealing or packing boreholes or wells

Current Industry

E21B33/06Blow-out preventers, i.e. apparatus closing around a drill pipe
Industries