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Hunan New Diamond Construction Machinery Co., Ltd.
Hunan New Diamond Construction Machinery Co., Ltd.
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High Drilling Speed DTH Hammer Bits Applied Geothermal Exploration Hole

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Hunan New Diamond Construction Machinery Co., Ltd.
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High Drilling Speed DTH Hammer Bits Applied Geothermal Exploration Hole

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High Drilling Speed DTH Hammer Bits Applied Geothermal Exploration Hole

QL60A Spline 12 tail length 253mm DTH hammer bits Description 1. has higher drilling speed. 2. can provide hardening treatment in order to prolong the service life and reduce the cost of use. 3. ...

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down the hole bits

      

rock boring bits

      
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