TREA

by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall

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Industry

  • CPC
  • E21D11/383
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D11/00Lining tunnels, galleries or other underground cavities

Current Industry

E21D11/383by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall
Industries