Construction South Portal Second Tube Predor Karavanke, Slovenia
Construction South Portal Second Tube Predor Karavanke , Slovenia (by DARS from Wikipedia https://en.wikipedia.org/wiki/File:Predor_Karavanke_Construction_Site_15.jpg)Terratec TBM for Mithi River Water Quality Improvement Project of Mumbai
Terratec TBM for Mithi River Water Quality Improvement Project of Mumbai Photograph used with courtesy of Terratec co. from :https://terratec.co/NewsInfos/detail/106
cover tunnel photo by: Matt Brown from London, England / CC BY
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