Roll pass on Angle steel rolling, I-beam rolling and U-section, etc. were intensively studied.

他对角钢孔型轧制的，工字钢轧制和U -型钢轧制等剧做过深入研究。

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These models and calculation methods can be used for optimum design of Angle steel roll pass and good effect can be obtained.

将这些模型和算法应用于角钢孔型优化设计，可获得较好的效果。

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