非取芯钻头

4 Wings 98mm Steel Body Small PDC Well Drilling Bit

4 Wings 98mm

High Quality Three Wings Inner Concave Non Core Mini PDC Drill Bit

High Quality

PDC Drill Bit for Water Well And Geothermal Well Drill

PDC Drill Bi

Carbonized Wu Alloy Arc Angle PDC Diamond Water Well Bits

Carbonized W

Four-Wing PDC Diamond Drill Bit For Water Well And Rock Drilling

Four-Wing PD

Multi-Wing Tower PDC Diamond Drilling Bit For Water Well Drilling

Multi-Wing T

High Quality PDC Diamond Scraper Water Plugging Bits

High Quality

Three Wing PDC Bit for Water Well And Geothermal Drilling Rig

Three Wing P

High Quality Water Well Three Wing PDC Diamond Drill Bits

High Quality

Triangular Cutting Disc Drill Bit Triangle Diamond Drill Bit

Triangular C

Four-Wing High Gauge PDC Diamond Drill Bit For Water Well Drill And Oil Drill

Four-Wing Hi

High Quality Mining Drag Bit PDC Diamond Water Well Drill Bit

High Quality

3 Wings Non Core Diamond PDC Drill Bit

3 Wings Non

Pdc Concave Drill Bit

Pdc Concave

Coal mining PDC Anchor Drill bit

Coal mining

non-coring pdc bit

non-coring p

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