Analyzed press technology characteristics of vent-windows of the car side board, designed a lancing-drawing compound die.
分析了车厢侧板零件通风窗冲压加工的工艺特点，设计了一副针对该零件加工的切口拉伸复合模。
Analyzed press technology characteristics of vent-windows of the car side board, designed a lancing-drawing compound die.
分析了车厢侧板零件通风窗冲压加工的工艺特点，设计了一副针对该零件加工的切口拉伸复合模。
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