tunnel in old coal mine, reinforced with wood
Tags
bend cavern coal column copper corridor curve dig dirt dirty dust employment energy entrance excavate geology industrial industry job labor machinery metal mine miner mineral passageway pick pillar profession quality reinforce safety skill space tracks train tunnel tunneling underground underpass work-
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License and Use
Free for commercial use No attribution required- Created With Redmond.ai
- Details
- Published on Nov 09, 2022
- Photo type JPG
- Category Technology