Comment on "World Tunnel Congress 2020 Kuala Lumpur - WTC2020"
...leif-schmidt WHATSAPP: +66 81 9631982 SKYPE: leifschmidt #TBM #TunnelBoringMachine #Tunnel #Tunneling #Plant #Pl...Comment on "World Tunnel Congress 2020 Kuala Lumpur - WTC2020"
...leif-schmidt WHATSAPP: +66 81 9631982 SKYPE: leifschmidt #TBM #TunnelBoringMachine #Tunnel #Tunneling #Plant #Pl...
cover tunnel photo by: Matt Brown from London, England / CC BY
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