Causes to the laminar defect of the umbrella bone steel occurring in the process of cold forming are analyzed by chemical analysis and microstructure analysis.
采用化学分析及微观组织分析的方法，对伞骨钢压扁后成型过程中所产生分层缺陷的原因进行分析。
Causes to the laminar defect of the umbrella bone steel occurring in the process of cold forming are analyzed by chemical analysis and microstructure analysis.
采用化学分析及微观组织分析的方法，对伞骨钢压扁后成型过程中所产生分层缺陷的原因进行分析。
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