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: Hebei Tuff Heavy Industry Co., Ltd.

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Hebei Tuff Heavy Industry Co., Ltd.

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: 8.5 Inch Hard Diamond Tricone Rock Roller Bits 100MPa To 200MPa

: 8 1/2" IADC 537 Dia 135mm Roller Cone Drill Bit For Foundation Pile

: 70rpm To 40rpm Drill Roller Cone Bits Tungsten Carbide Equipped With Core Barrel

: BJTUFF 215.9MM Single Cone Drill Bit Rotary Drilling Core Barrel Parts

: 13.5cm Single Roller Cone Drill Bit 13mm Tooth Dia For Pile Foundation Drilling

: ISO Bore Piles Hard Rock Roller Cone Drill Bits For Core Barrel

: Foundation Cutter Carbide Roller Cone Drill Bit For Hole Opener

: API Bore Piles Hard Rock Drill Roller Cone Bits For Core Barrel

: 8.5 Inch Removable Installed Rock Roller Cone Cutter

: hard formations 52 Conical Ball TCI Covers Full Cone Roller Cutter

: 14mm Full Covered Conical Insert High Hardness Roller Cone Drill Bit

: 8.5 Inch High quality Single cutting roller Core Drill Bit

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