二辊斜轧延伸9Cr-1Mo钢厚壁管内表裂纹形成倾向性模拟研究
이곤사알연신9Cr-1Mo강후벽관내표렬문형성경향성모의연구
A Study of Simulation on Tendency of Inner Surface Crack of Steel 9Cr-1Mo Heavy Wall Pipe Elongated by Two-High Cross Piercing Process
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