MT/T 1056-2008 Technical Conditions for Failure of Drill Pipe of Mine Anti-well Drilling Rig -- the People's Republic of China Coal Industry Standard

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2019-12-12

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MT/T 904-2002 Soft Rock Drill Pipe and Bit of Welded Structure -- the People's Republic of China Coal Industry Standard

MT/T 538-1996 Coal drill pipe -- the People's Republic of China coal industry standard

MT/T 904-2002 Soft Rock Drill Pipe and Bit of Welded Structure -- the People's Republic of China Coal Industry Standard

MT/T 538-1996 Coal drill pipe -- the People's Republic of China coal industry standard

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