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Changsha Tianhe Drilling Tools and Machinery Co.,Ltd.
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Stable Working OD 285mm Casing Drilling System , Carbides DTH Installation Tools

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Stable Working OD 285mm Casing Drilling System , Carbides DTH Installation Tools

Contact Now

Stable Working OD 285mm Casing Drilling System , Carbides DTH Installation Tools

Concentric overburden drill bit with blocks Specification 1.Face: Flat,Convex,Concave,Drop-center. 2.Carbide Button Shape: Spherical,Semi-ballistic,Ballistic and Two-step 3.Bit Shank: COP/DHD/QL/SD...

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symmetrix drilling system

      

concentric drilling system

      
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