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Shaanxi Hainaisen Petroleum Technology Co.,Ltd

Shaanxi Hainaisen Petroleum Technology Co.,Ltd

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Carbide Tungsten Oil Well Drill Bit 8 Nozzle PDC For Well Drilling

Shaanxi Hainaisen Petroleum Technology Co.,Ltd
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Carbide Tungsten Oil Well Drill Bit 8 Nozzle PDC For Well Drilling

Carbide Tungsten Oil Well Drill Bit 8 Nozzle PDC For Well Drilling

8.75inch 5 Blades Tungsten Carbide Drill Bits Diamond Drill Bit Oil Well 1. Rolling seal bearing structure, the cylindrical roller cone is in the groove, which increases the size of the journal. 2. ...

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