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据德《明镜》周刊报道,德国马格德堡市弗劳恩霍弗研究所的科研人员发明了一种新方法,可以用纸制造出冲模,用来冲压钢制
According to the German “Der Spiegel” magazine reported that researchers at the Fraunhofer Institute in Magdeburg, Germany, invented a new method that can be used to create a stamping die, used to stamp steel