4. Hydraulic and earth engineering
  5. Underground passageway, e.g., tunnel
  6. Boring

Herrenknecht GmbH

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Recoverable tunnelling machine

Hydraulic and earth engineering – Underground passageway – e.g. – tunnel – Boring
Patent

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Tunneling machine with center cutter and debris removing means

Mining or in situ disintegration of hard material – Hard material disintegrating machines – Rotary cutter head with advance direction coincident or...
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