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| First Page | Document Content | |
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 Date: 2012-05-18 11:34:50Oilfield terminology Petroleum engineering Drill Tools Hammer Safety Technology Human–machine interaction Metalworking hand tools |
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| First Page | Document Content | |
|---|---|---|
Date: 2012-05-18 11:34:50Oilfield terminology Petroleum engineering Drill Tools Hammer Safety Technology Human–machine interaction Metalworking hand tools |
|
Microsoft Word - August[removed]SPT hammer efficiencies.doc