China tests 500-ton machine that can excavate to depths exceeding 3,280 feet
SMRTR summary
China tested Gangtie Jiliang, a 500-ton boring machine that drills vertical shafts through hard rock beyond 3,280 feet. This technology accesses unreachable mineral deposits while reducing environmental impact.
SMRTR provides this summary for quick context. The original article belongs to Interesting Engineering.
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