tricone rock roller bits iadc 537 オンライン製造

High Quality 12 1/4inch IADC537 Tricone Rock Drilling Bits IADC Recommended parameters Applicable strata WOB KN/mm Rotating speed r/min 116,117 0.35-0... 続きを読む

Factory Supply Directly 215.9mm 8inch IADC537 Tricone Rock Drilling Bit JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone ... 続きを読む

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High Quality 8 1/2inch IADC537 216mm Tci Tricone Rock Drill Bit JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are ... 続きを読む

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Factory Wholesale 190.5mm 190mm IADC 537 Tungsten Carbide Insert Tricone Roller Core Rock Drill Bit JSBIT tricone bits factory offers all kinds of ... 続きを読む

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 ... 続きを読む

9 5/8 inch 244.5mm iadc737 air bearing type tricone rock drill bit JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits are ... 続きを読む

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9 5/8inch 245mm IADC637 Tricone Rock Drill Bit For Water Well Drilling JSBIT tricone bits factory offers all kinds of tricone drill bits. Tricone bits ... 続きを読む