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Tunnel Boring Machine Cutter Miner Mining Bits Polycrystalline Diamond Tip Pick Coal Cutting Bits

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Tunnel Boring Machine Cutter Miner Mining Bits Polycrystalline Diamond Tip Pick Coal Cutting Bits 

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

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

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