The pre hardened steel most suitable for mirror polishing.

最适用于镜面抛光加工的预硬化钢.

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On the road that leads to those gates of hardened steel.

在那通向那些坚固的钢铁栅栏的道路上.

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The group have also used their machine to punch holes in hardened steel, including stainless steel.

用他们研发的设备甚至可以加工淬火钢, 包括不锈钢.

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The paper introduces a workpiece process of using milling not grinding for hardened steel surface.

介绍了对淬火钢平面铣削代替磨削的加工工艺.

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