硬質(zhì)合金拔模
TUBE DRAWING WITH HARD METAL TOOLS
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摘要: 用碳化鎢硬質(zhì)合金拔模拔制的鋼管,尺寸公差精度高,表面質(zhì)量好,而且拔模的使用壽命也較長。Abstract: The steel pipes, drawn with the tungsten carbide tools, are of high dimensional accuracy and good surface quality. And the drawing dies have longer service life.
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