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... away at the same rate as the diamonds become worn and rounded. Thus new sharp diamonds are exposed to continue cutting through the rock. In most g...

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300mm Diamond with reamer , Core Casing Shoes PX HX NX BX 300mm , single tupe Impregnated Diamond Core are manufa...

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... HIN-WALL DIAMOND IMPREGNATED Cost reduction and efficiency improvement ; compared with the general ,further 20~50% footage ...

..., the effect of pressure also needs to be considered. pressure is the pressure applied to the through the dril...

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