Keywords [ forging percussion well drilling bits ] match 1 products.
buy Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling online manufacturer

Coal 8.5 Inch Oilfield Drill Bit Forging Percussion Well Drilling

Size: 8 1/2inch (215.9mm)
Material: Carbide,Carbon Steel
Use: Well Drilling,Coal Mining,well Drill
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