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Cangzhou Great Drill Bits Co.,Ltd.
Cangzhou Great Drill Bits Co.,Ltd.
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Recent Products
  • Roller Bit Core Barrel

    Roller Bit Core Barrel

    Core barrel with roller bit is used in very strong rock formations(compressive strength > 100Mpa)
  • TCI Bit

    TCI Bit

    Tricone bit is an important tool for oil drilling.
  • RC PDC Bit

    RC PDC Bit

    RC PDC bit from GREAT are manufactured from AISI 4145H heat-treated steel.
  • Raise Boring Cutters

    Raise Boring Cutters

    Raise Boring Cutters OverviewThe raise boring cutters is mainly used for the construction of vertical shafts, ventilation shafts inclined shafts, pressure regulating shafts and escape shafts , and it...