Analysis and prevention of crack in 40Cr drill pipe joints[J]. MW Metal Forming, 2009, (7): 54-54.
Citation:
|
Analysis and prevention of crack in 40Cr drill pipe joints[J]. MW Metal Forming, 2009, (7): 54-54.
|
Analysis and prevention of crack in 40Cr drill pipe joints[J]. MW Metal Forming, 2009, (7): 54-54.
Citation:
|
Analysis and prevention of crack in 40Cr drill pipe joints[J]. MW Metal Forming, 2009, (7): 54-54.
|