TREA

Details of mine caps for engaging the tops of pit-props, with or without retaining-plates Retaining-plates

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Industry

  • CPC
  • E21D17/10
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Parent Industries

EFIXED CONSTRUCTIONS E21Mining E21DSHAFTS TUNNELS GALLERIES LARGE UNDERGROUND CHAMBERS E21D17/00Caps for supporting mine roofs

Current Industry

E21D17/10Details of mine caps for engaging the tops of pit-props, with or without retaining-plates Retaining-plates
Industries