9 7/8 Inch IADC 725 New Tricone Drill Bits For Oil Well Medium Bit Well Drilling with sealed bearing
USD $1470 - $1580 /Piece
Min.Order:1 Piece
Hunan Tianying Drilling Machine Manufacturing Co.,Ltd.
IADC 537 270 MM 10 5/8inch Factory Supply Tricone Rock Roller Bit For Oil, Gas, Water Well Drilling
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