R25 R28 R32 R38 T38 T45 T51 Drill Coupling For Top Hammer Drilling2022-03-15 16:18:30 |
90mm 115mm 120mm Down The Hole Drill Adapter2021-08-25 10:34:01 |
BQ NQ HQ PQ AW BW HW Drill Rods Drill Pipe For Geological Drilling2020-06-09 14:20:13 |
API Standard REG DTH Drill Rod , DTH Drill Pipe 76mm 89mm 102mm Diameter2022-03-15 15:42:19 |
API Standard Drill Pipe NQ HQ PQ BQ NW HW PW Wireline Hardened Drill Rod2022-03-15 16:11:13 |