Последние добавленные видео:
kellybar
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3 years ago
758 3 years ago 3:54Mini Rotary Drilling Rig _ 60KnM Torque _ 20m INTERLOCKING KELLY BAR _ 15.5t weight
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1 year ago
7948 1 year ago 1:25Kelly Bars: How a Kelly Bar Works
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1 year ago
2141 1 year ago 3:12Kelly Bars: The Stages of a Kelly Bar
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12 years ago
22285 12 years ago 8:01Mechanical lock type drilling kelly bar By sirthin sara @Pylon
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2 years ago
403 2 years ago 8:36SANY SR155 Funcionamiento (Kelly Bar works)