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The diamond cutting element for a rotary drill bit for deep boreholes in soil formations
The diamond cutting element for a rotary drill bit for deep boreholes in soil formations
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机译:用于土壤地层深孔的旋转钻头的金刚石切割元件
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摘要
a schneidglied for drehbohrmeißel for deep drilling in bodenformationen consists of a trägerkörper with a wing and a with this on his back firmly associated stützkörper from tungsten carbide with a sc
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