They cut holes on the sheet of metal with a punch press.
他们用冲床在金属板上打孔。
It designs a quick-change punch die structure, which can be used for combination punch die and flexible punch press system.
设计了一种可应用于组合冲模及柔性冲压系统的快换冲模机构。
Punch press: machine tool that changes the size or shape of a piece of material usually sheet metal by applying pressure to a die in which the workpiece is held.
冲床:将压力加到装有工件的模具上,以改变一片材料,通常是金属片的大小和形状的机床。
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