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Iadc 531 3-7/8" Tricone Rock Bits For Well Drilling Packed In Wooden Case JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are available in new and used tricone bits , steel tooth ... อ่านเพิ่มเติม

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9 1/2inch 241mm IADC537 Tricone Rock Bit For Oil Well Drilling JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are available in new and used tricone bits , steel tooth and ... อ่านเพิ่มเติม

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8. 5inch 215.9mm IADC537 Tricone Rock Bit For Water Oil Well Drilling 1)Rubber sealed Bearing Structure High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. ... อ่านเพิ่มเติม

17.5inch 444.5mm IADC537 Tricone Rock Bit For Water Well Drilling 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 ... อ่านเพิ่มเติม

Factory IADC537 311mm Tricone Rock Bit For Water Well Drilling 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 compressiv... อ่านเพิ่มเติม