TREA

anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks

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Industry

  • CPC
  • E21B33/1291
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Parent Industries

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

Current Industry

E21B33/1291anchor set by wedge or cam in combination with frictional effect, using so-called drag-blocks
Industries