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YG8 K20 Hardness 90 grinding Tungsten Carbide Button for drilling k20 k30 k40 tungsten carbide button

YG8 K20 Hardness 90 grinding Tungsten Carbide Button for drilling k20 k30 k40 tungsten carbide button

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YG8 K20 Hardness 90 grinding Tungsten Carbide Button for drilling k20 k30 k40 tungsten carbide button

Parabolic button are widely used as gauge buttons and front buttons of DTH bits,suitable for medium abrasive and hard formations.

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Rock DTH drill bits,Tungsten carbide mining drill bits,Overburden drilling bits,Tungsten carbide button,DTH hammer,Coal mining picks

Rock DTH drill bits,Tungsten carbide mining drill bits,Overburden drilling bits,Tungsten carbide button,DTH hammer,Coal mining picks

Rock DTH drill bits,Tungsten carbide mining drill bits,Overburden drilling bits,Tungsten carbide button,DTH hammer,Coal mining picks





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