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Tunnelling - Advances in raise boring - Raise boring can now be used in projects deep underground
Tunnelling - Advances in raise boring - Raise boring can now be used in projects deep underground
Tunnelling - Advances in raise boring - Raise boring can now be used in projects deep underground
2012
Aufsatz (Zeitschrift)
Englisch
Pilot bits for more efficient raise boring
Online Contents | 2016
Deep surface soil stratum large-diameter shaft raise-boring construction method
Europäisches Patentamt | 2022
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