Double Casing Drilling System

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  • Crown Reaming Bit-Double Casing System

    1.Hardening treatment of the parts surface with longer operating life
    and excellent anti-wear properties
    2.Structure optimization Strengthen the structural
    3.Superior performance Smooth with high efficiency

  • Double Casing/ Head Rotary System

    1.Hardening treatment of the parts surface with longer operating life
    and excellent anti-wear properties
    2.Structure optimization Strengthen the structural
    3.Superior performance Smooth with high efficiency