TREA

with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure

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Industry

  • CPC
  • E21D15/22
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D15/00Props Chocks

Current Industry

E21D15/22with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure
Industries