4. Mining or in situ disintegration of hard material
  5. Processes
  6. Forming blocks
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Parachute stopping for mine ventilation use

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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Prestressed roof support system

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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Process for preparing the exposed surface of a rock formation to

Mining or in situ disintegration of hard material – Processes – Forming blocks
Patent

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