... 整型机—Trimming presses 冲压机—Punch presses 开卷校平机、线及卷材（盘料）输送设备—Coil open straightening machines，coil transfer ...
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Punch presses are usually driven by electric motors.
冲床通常由电动机驱动。
This paper deals with the size optimization of the mechanism of M12B punch presses.
本文对M12B型冲压机的机构尺寸进行了优化。
The punch pushes against the workpiece, which is held in the die. Punch presses are usually driven by electric motors.
冲头推压装于模具中的工件。冲床通常由电动机驱动。
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