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https://www.youtube.com/watch?v=m6lDtt6gquA
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Location: Taichung TaiwanDistance: 1367mDepth: 40mHorizontal Curve: 1500mEntry Angle: 12degExit Angle: 10degGround: Cobble, Clay and SandPipeline: 36” steel pipeJob…
https://www.youtube.com/watch?v=BueW9aQW0io