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Thread Crossover Drill Coupling High Strength Alloy Steel For Tunneling

Drill Coupling
2022-03-15
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#threaded coupling #rock drilling tool #crossover coupling
T45 to T51 Crossover Coupling R25 R32,R38,T38,T45,T51Coupling for Harding Rock Drilling Product Description Couplings sleeve are used to well connect the shank adapter to the drill rods or well ... View More
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Thread Crossover Drill Coupling High Strength Alloy Steel For Tunneling
Thread Crossover Drill Coupling High Strength Alloy Steel For Tunneling
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