6 Years
Sealed Bearing Tricone Roller Bit / 12 1/4" IADC 617 Oilfield Drill Bit Basical Parameter Bit Size 12 1/4"(311.1MM) IADC Code 617 Connection 6 5/8"API reg pin Nozzle Qty 3NZ Make up Torque(KN.m) 16.3...
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