Detail: Tungsten carbide R32 Drill Coupling Crossover Coupling for Tunneling Description Crossover coupling using R32 thread system R32 thread system Widely used in drifting and....
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Detail: Description This type of bit is well known for its high wear resistance on medium-hard to hard abrasive rock formations ( between 200 Mpa to 260 Mpa compressive strength) . Featuring....