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water well drilling 17 1/2" IADC 537 metal seal journal bearing used tci tricone bit rock rotary roller cone drill bit Product Overview Hard Alloy Welding Prevent bit wear and tear work and protect the bearing ... Read More

High Quality 22inch IADC127 Mill Teeth Tricone Drilling Bit IADC Recommended parameters Applicable strata WOB KN/mm Rotating speed r/min 116,117 0.35-0.8 150-80 Extremely soft formations with high compressive ... Read More

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Factory Supply Directly 15 1/2inch IADC217 Steel Teeth Tricone Bit 1)Rubber sealed Bearing Structure High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone ... Read More