‘"땅속에 두더지 한 마리가 지나가고 있다고 생각하면 됩니다"450톤 70억 원 최첨단 터널 공사 장비로 지하철 터널 공사하는 법｜서울지하철 7호선 연장 작업｜극한직업｜#골라듄다큐
Published October 12, 2026
Views 49.7K | Likes 41 | Comments 2
Ranked #14,300,093 globally by view count, this video has accumulated 49.7K views since it was published on Oct 12, 2026.
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