X80 pipeline steel welding technology of west-east gas transmission project second-line[J]. MW Metal Forming, 2008, (22): 34-35,38.
Citation: X80 pipeline steel welding technology of west-east gas transmission project second-line[J]. MW Metal Forming, 2008, (22): 34-35,38.

X80 pipeline steel welding technology of west-east gas transmission project second-line

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