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API Standard Drill Pipe NQ HQ PQ BQ NW HW PW Wireline Hardened Drill Rod2022-03-15 16:11:13 |
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Small Hole Threaded Drill Rod H25 Length 3050mm With Shank 22 * 108mm2025-03-12 15:08:53 |
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SGS Certification Tunnel Bench Drilling T38 T45 T51 Threaded Drill Bars2022-03-15 16:25:36 |
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Crossover Standart Coupling Sleeves Thread R32 Length 150mm - 210mm2022-03-31 15:17:23 |