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MDL-150H CRAWLER ANCHOR DRILLING RIG Specification: TYPE MDL-150H Diameter(mm) Φ150~Φ250 Depth(m) 130-170 Rod dia(mm) Φ73,Φ89,Φ102,Φ114 Drill angle(°) 0-100 Max drill arm level height(m) 3.3 Crawler ...