Swivel Tube Core BarrelThe swivel-tube barrel can effectively increase core recovery ratio, suitable for drilling in formations in which oblique hole comes easy. It is effe
Air-Driven Hollow DTH HammerUsed together with dual concentric drill pipe, air-driven hollow down-the-hole hammer can perform continuous reverse circulation core (sample) drilli
TBW Core Bit and Reaming Shell
Diamond Core Bits for Geology
HQ Diamond Core Bits and HQ Reaming Shell
NQ Core Bits and NQ Reaming Shell
Double Tube Diamond Core Bit and Reaming Shell
PQ Natural Diamond Core Bit in Surface-set
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