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8-3/4 Inch Stone PDC Drag Bit 245mm PDC Drill Bits 5 Blades2023-01-09 13:41:58 |
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Concrete 8.5in Diamond PDC Bit Welding Coal Mining Bit2023-01-11 10:39:34 |
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Golden Stone Dth Drill Bits 216mm Tungsten Carbide Rock2023-01-11 10:39:34 |
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30mm Cone Diamond PDC Cutter Inserts For Well Drilling2022-08-10 15:41:42 |
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Sintered Steel Body PDC Bit Concrete Diamond Wear Resistance2023-01-11 10:39:34 |
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PDC Cone Tungsten Carbide Cutter 14mm Diamond Inserts2022-08-10 15:42:35 |