On the basis of the analysis of the character of aluminum alloy profile for subway and its producing difficulty, structure design and various technical parameter of extruded die were detailed.
在分析了地铁车辆用铝合金型材的特点及其生产难度的基础上，对挤压模具的结构设计和各项技术参数的确定做了详细说明。
On the basis of the analysis of the character of aluminum alloy profile for subway and its producing difficulty, structure design and various technical parameter of extruded die were detailed.
在分析了地铁车辆用铝合金型材的特点及其生产难度的基础上，对挤压模具的结构设计和各项技术参数的确定做了详细说明。
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